20021011222010 has 16 divisors (see below), whose sum is σ = 36038384328456. Its totient is φ = 8008279126848.

The previous prime is 20021011221997. The next prime is 20021011222013. The reversal of 20021011222010 is 1022211012002.

It can be written as a sum of positive squares in 4 ways, for example, as 17607515369161 + 2413495852849 = 4196131^2 + 1553543^2 .

It is not an unprimeable number, because it can be changed into a prime (20021011222013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14998109 + ... + 16278368.

Almost surely, 2^{20021011222010} is an apocalyptic number.

20021011222010 is a deficient number, since it is larger than the sum of its proper divisors (16017373106446).

20021011222010 is a wasteful number, since it uses less digits than its factorization.

20021011222010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31340497.

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

Adding to 20021011222010 its reverse (1022211012002), we get a palindrome (21043222234012).

The spelling of 20021011222010 in words is "twenty trillion, twenty-one billion, eleven million, two hundred twenty-two thousand, ten".