1222220102000 has 80 divisors (see below), whose sum is σ = 2955932460000. Its totient is φ = 488788083200.

The previous prime is 1222220101939. The next prime is 1222220102009. The reversal of 1222220102000 is 2010222221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222220102009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10138076 + ... + 10257924.

It is an arithmetic number, because the mean of its divisors is an integer number (36949155750).

Almost surely, 2^{1222220102000} is an apocalyptic number.

1222220102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222220102000 is an abundant number, since it is smaller than the sum of its proper divisors (1733712358000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222220102000 is a wasteful number, since it uses less digits than its factorization.

1222220102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124971 (or 124955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1222220102000 its reverse (2010222221), we get a palindrome (1224230324221).

The spelling of 1222220102000 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, one hundred two thousand".