20100220221022 has 16 divisors (see below), whose sum is σ = 30800154413952. Its totient is φ = 9835174732320.

The previous prime is 20100220221017. The next prime is 20100220221023. The reversal of 20100220221022 is 22012202200102.

It is a junction number, because it is equal to n+sod(n) for n = 20100220220987 and 20100220221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100220221023) 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, 418138158 + ... + 418186225.

It is an arithmetic number, because the mean of its divisors is an integer number (1925009650872).

Almost surely, 2^{20100220221022} is an apocalyptic number.

20100220221022 is a deficient number, since it is larger than the sum of its proper divisors (10699934192930).

20100220221022 is a wasteful number, since it uses less digits than its factorization.

20100220221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836324643.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20100220221022 its reverse (22012202200102), we get a palindrome (42112422421124).

The spelling of 20100220221022 in words is "twenty trillion, one hundred billion, two hundred twenty million, two hundred twenty-one thousand, twenty-two".