221010121201002 has 64 divisors (see below), whose sum is σ = 546125396090880. Its totient is φ = 58205469830976.

The previous prime is 221010121200991. The next prime is 221010121201031. The reversal of 221010121201002 is 200102121010122.

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, 3742606138 + ... + 3742665189.

It is an arithmetic number, because the mean of its divisors is an integer number (8533209313920).

Almost surely, 2^{221010121201002} is an apocalyptic number.

221010121201002 is an abundant number, since it is smaller than the sum of its proper divisors (325115274889878).

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

221010121201002 is a wasteful number, since it uses less digits than its factorization.

221010121201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485271395.

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

Adding to 221010121201002 its reverse (200102121010122), we get a palindrome (421112242211124).

The spelling of 221010121201002 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty-one million, two hundred one thousand, two".