1002202121112 has 16 divisors (see below), whose sum is σ = 2505505302840. Its totient is φ = 334067373696.

The previous prime is 1002202121069. The next prime is 1002202121117. The reversal of 1002202121112 is 2111212022001.

It is a super-2 number, since 2×1002202121112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002202121091 and 1002202121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002202121117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20879210833 + ... + 20879210880.

Almost surely, 2^{1002202121112} is an apocalyptic number.

1002202121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002202121112 is an abundant number, since it is smaller than the sum of its proper divisors (1503303181728).

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

1002202121112 is a wasteful number, since it uses less digits than its factorization.

1002202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41758421722 (or 41758421718 counting only the distinct ones).

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

Adding to 1002202121112 its reverse (2111212022001), we get a palindrome (3113414143113).

The spelling of 1002202121112 in words is "one trillion, two billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".