1002101122212 has 96 divisors (see below), whose sum is σ = 2578261238784. Its totient is φ = 301550592000.

The previous prime is 1002101122177. The next prime is 1002101122261. The reversal of 1002101122212 is 2122211012001.

It is a junction number, because it is equal to n+sod(n) for n = 1002101122191 and 1002101122200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13462 + ... + 1415762.

It is an arithmetic number, because the mean of its divisors is an integer number (26856887904).

Almost surely, 2^{1002101122212} is an apocalyptic number.

1002101122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002101122212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289130619392).

1002101122212 is an abundant number, since it is smaller than the sum of its proper divisors (1576160116572).

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

1002101122212 is a wasteful number, since it uses less digits than its factorization.

1002101122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402469 (or 1402467 counting only the distinct ones).

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

Adding to 1002101122212 its reverse (2122211012001), we get a palindrome (3124312134213).

The spelling of 1002101122212 in words is "one trillion, two billion, one hundred one million, one hundred twenty-two thousand, two hundred twelve".