20120221022210 has 64 divisors (see below), whose sum is σ = 36633776256000. Its totient is φ = 7955703360000.

The previous prime is 20120221022197. The next prime is 20120221022221. The reversal of 20120221022210 is 1222012202102.

It is a happy number.

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, 858689195 + ... + 858712625.

It is an arithmetic number, because the mean of its divisors is an integer number (572402754000).

Almost surely, 2^{20120221022210} is an apocalyptic number.

20120221022210 is a deficient number, since it is larger than the sum of its proper divisors (16513555233790).

20120221022210 is a wasteful number, since it uses less digits than its factorization.

20120221022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25347.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20120221022210 its reverse (1222012202102), we get a palindrome (21342233224312).

The spelling of 20120221022210 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, twenty-two thousand, two hundred ten".