21101211122002 has 96 divisors (see below), whose sum is σ = 36867390400512. Its totient is φ = 9037467648000.

The previous prime is 21101211121999. The next prime is 21101211122029. The reversal of 21101211122002 is 20022111210112.

It is a super-2 number, since 2×21101211122002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67895602 + ... + 68205682.

It is an arithmetic number, because the mean of its divisors is an integer number (384035316672).

Almost surely, 2^{21101211122002} is an apocalyptic number.

21101211122002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21101211122002 is a deficient number, since it is larger than the sum of its proper divisors (15766179278510).

21101211122002 is a wasteful number, since it uses less digits than its factorization.

21101211122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310376 (or 310365 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21101211122002 its reverse (20022111210112), we get a palindrome (41123322332114).

The spelling of 21101211122002 in words is "twenty-one trillion, one hundred one billion, two hundred eleven million, one hundred twenty-two thousand, two".