22121030221002 has 48 divisors (see below), whose sum is σ = 47971816244352. Its totient is φ = 7367076905760.

The previous prime is 22121030220977. The next prime is 22121030221033. The reversal of 22121030221002 is 20012203012122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95000523 + ... + 95233089.

It is an arithmetic number, because the mean of its divisors is an integer number (999412838424).

Almost surely, 2^{22121030221002} is an apocalyptic number.

22121030221002 is an abundant number, since it is smaller than the sum of its proper divisors (25850786023350).

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

22121030221002 is a wasteful number, since it uses less digits than its factorization.

22121030221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237283 (or 237280 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22121030221002 its reverse (20012203012122), we get a palindrome (42133233233124).

The spelling of 22121030221002 in words is "twenty-two trillion, one hundred twenty-one billion, thirty million, two hundred twenty-one thousand, two".