20102112020211 has 16 divisors (see below), whose sum is σ = 29859901145760. Its totient is φ = 11943960456960.

The previous prime is 20102112020197. The next prime is 20102112020233. The reversal of 20102112020211 is 11202021120102.

It is not a de Polignac number, because 20102112020211 - 2¹³ = 20102112012019 is a prime.

It is a super-2 number, since 2×20102112020211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20102112420211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8886874210 + ... + 8886876471.

It is an arithmetic number, because the mean of its divisors is an integer number (1866243821610).

Almost surely, 2^{20102112020211} is an apocalyptic number.

20102112020211 is a deficient number, since it is larger than the sum of its proper divisors (9757789125549).

20102112020211 is a wasteful number, since it uses less digits than its factorization.

20102112020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17773750726.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20102112020211 its reverse (11202021120102), we get a palindrome (31304133140313).

The spelling of 20102112020211 in words is "twenty trillion, one hundred two billion, one hundred twelve million, twenty thousand, two hundred eleven".