1002111111222 has 32 divisors (see below), whose sum is σ = 2252236347648. Its totient is φ = 294935711136.

The previous prime is 1002111111203. The next prime is 1002111111233. The reversal of 1002111111222 is 2221111112001.

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 15 ways as a sum of consecutive naturals, for example, 279293388 + ... + 279296975.

It is an arithmetic number, because the mean of its divisors is an integer number (70382385864).

Almost surely, 2^{1002111111222} is an apocalyptic number.

1002111111222 is an abundant number, since it is smaller than the sum of its proper divisors (1250125236426).

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

1002111111222 is a wasteful number, since it uses less digits than its factorization.

1002111111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558590404.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1002111111222 its reverse (2221111112001), we get a palindrome (3223222223223).

The spelling of 1002111111222 in words is "one trillion, two billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".