221020022211010 has 48 divisors (see below), whose sum is σ = 443449880145216. Its totient is φ = 79238932388000.

The previous prime is 221020022210971. The next prime is 221020022211011. The reversal of 221020022211010 is 10112220020122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221020022211011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1286260396 + ... + 1286432215.

It is an arithmetic number, because the mean of its divisors is an integer number (9238539169692).

Almost surely, 2^{221020022211010} is an apocalyptic number.

221020022211010 is an abundant number, since it is smaller than the sum of its proper divisors (222429857934206).

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

221020022211010 is a wasteful number, since it uses less digits than its factorization.

221020022211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572692711 (or 2572692700 counting only the distinct ones).

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

Adding to 221020022211010 its reverse (10112220020122), we get a palindrome (231132242231132).

The spelling of 221020022211010 in words is "two hundred twenty-one trillion, twenty billion, twenty-two million, two hundred eleven thousand, ten".