1002120221222 has 16 divisors (see below), whose sum is σ = 1582372590000. Its totient is φ = 474665274720.

The previous prime is 1002120221191. The next prime is 1002120221233. The reversal of 1002120221222 is 2221220212001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002120221222.

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, 152972 + ... + 1423952.

It is an arithmetic number, because the mean of its divisors is an integer number (98898286875).

Almost surely, 2^{1002120221222} is an apocalyptic number.

1002120221222 is a deficient number, since it is larger than the sum of its proper divisors (580252368778).

1002120221222 is a wasteful number, since it uses less digits than its factorization.

1002120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291751.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1002120221222 its reverse (2221220212001), we get a palindrome (3223340433223).

The spelling of 1002120221222 in words is "one trillion, two billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".