101220212021211 has 6 divisors (see below), whose sum is σ = 146206972919540. Its totient is φ = 67480141347468.

The previous prime is 101220212021189. The next prime is 101220212021261. The reversal of 101220212021211 is 112120212022101.

101220212021211 is a `hidden beast` number, since 1 + 0 + 1 + 220 + 212 + 0 + 21 + 211 = 666.

It is not a de Polignac number, because 101220212021211 - 2²⁶ = 101220144912347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220212021261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5623345112281 + ... + 5623345112298.

Almost surely, 2^{101220212021211} is an apocalyptic number.

101220212021211 is a deficient number, since it is larger than the sum of its proper divisors (44986760898329).

101220212021211 is a wasteful number, since it uses less digits than its factorization.

101220212021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11246690224585 (or 11246690224582 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 101220212021211 its reverse (112120212022101), we get a palindrome (213340424043312).

The spelling of 101220212021211 in words is "one hundred one trillion, two hundred twenty billion, two hundred twelve million, twenty-one thousand, two hundred eleven".