1002121101222 has 16 divisors (see below), whose sum is σ = 2006875906992. Its totient is φ = 333601416320.

The previous prime is 1002121101221. The next prime is 1002121101251. The reversal of 1002121101222 is 2221011212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002121101221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109732743 + ... + 109741874.

It is an arithmetic number, because the mean of its divisors is an integer number (125429744187).

Almost surely, 2^{1002121101222} is an apocalyptic number.

1002121101222 is an abundant number, since it is smaller than the sum of its proper divisors (1004754805770).

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

1002121101222 is a wasteful number, since it uses less digits than its factorization.

1002121101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219475383.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1002121101222 its reverse (2221011212001), we get a palindrome (3223132313223).

The spelling of 1002121101222 in words is "one trillion, two billion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-two".