221201002001010 has 32 divisors (see below), whose sum is σ = 530978876651520. Its totient is φ = 58976214772608.

The previous prime is 221201002000987. The next prime is 221201002001059. The reversal of 221201002001010 is 10100200102122.

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, 669775555 + ... + 670105734.

It is an arithmetic number, because the mean of its divisors is an integer number (16593089895360).

Almost surely, 2^{221201002001010} is an apocalyptic number.

221201002001010 is an abundant number, since it is smaller than the sum of its proper divisors (309777874650510).

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

221201002001010 is a wasteful number, since it uses less digits than its factorization.

221201002001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339886802.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221201002001010 its reverse (10100200102122), we get a palindrome (231301202103132).

The spelling of 221201002001010 in words is "two hundred twenty-one trillion, two hundred one billion, two million, one thousand, ten".