101221000222 has 16 divisors (see below), whose sum is σ = 157202227440. Its totient is φ = 48823261312.

The previous prime is 101221000163. The next prime is 101221000259. The reversal of 101221000222 is 222000122101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682843 + ... + 817750.

It is an arithmetic number, because the mean of its divisors is an integer number (9825139215).

Almost surely, 2^101221000222 is an apocalyptic number.

101221000222 is a deficient number, since it is larger than the sum of its proper divisors (55981227218).

101221000222 is a wasteful number, since it uses less digits than its factorization.

101221000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501787.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 101221000222 its reverse (222000122101), we get a palindrome (323221122323).

The spelling of 101221000222 in words is "one hundred one billion, two hundred twenty-one million, two hundred twenty-two", and thus it is an aban number.