21121010202002 has 16 divisors (see below), whose sum is σ = 32703994708224. Its totient is φ = 10219688946000.

The previous prime is 21121010201983. The next prime is 21121010202031. The reversal of 21121010202002 is 20020201012112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1604852 + ... + 6694592.

It is an arithmetic number, because the mean of its divisors is an integer number (2043999669264).

Almost surely, 2^{21121010202002} is an apocalyptic number.

21121010202002 is a deficient number, since it is larger than the sum of its proper divisors (11582984506222).

21121010202002 is a wasteful number, since it uses less digits than its factorization.

21121010202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156705.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21121010202002 its reverse (20020201012112), we get a palindrome (41141211214114).

The spelling of 21121010202002 in words is "twenty-one trillion, one hundred twenty-one billion, ten million, two hundred two thousand, two".