22121210201002 has 32 divisors (see below), whose sum is σ = 36568064174400. Its totient is φ = 9952585516800.

The previous prime is 22121210200997. The next prime is 22121210201017. The reversal of 22121210201002 is 20010201212122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2421727 + ... + 7078642.

It is an arithmetic number, because the mean of its divisors is an integer number (1142752005450).

Almost surely, 2^{22121210201002} is an apocalyptic number.

22121210201002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121210201002 is a deficient number, since it is larger than the sum of its proper divisors (14446853973398).

22121210201002 is a wasteful number, since it uses less digits than its factorization.

22121210201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9501462.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121210201002 its reverse (20010201212122), we get a palindrome (42131411413124).

The spelling of 22121210201002 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, two hundred one thousand, two".