211220220200101 has 32 divisors (see below), whose sum is σ = 263874240921600. Its totient is φ = 165086321400000.

The previous prime is 211220220200089. The next prime is 211220220200131. The reversal of 211220220200101 is 101002022022112.

It is a happy number.

It is not a de Polignac number, because 211220220200101 - 2³⁵ = 211185860461733 is a prime.

It is a super-2 number, since 2×211220220200101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220220200131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285953025 + ... + 286690726.

It is an arithmetic number, because the mean of its divisors is an integer number (8246070028800).

Almost surely, 2^{211220220200101} is an apocalyptic number.

It is an amenable number.

211220220200101 is a deficient number, since it is larger than the sum of its proper divisors (52654020721499).

211220220200101 is a wasteful number, since it uses less digits than its factorization.

211220220200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572643889.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211220220200101 its reverse (101002022022112), we get a palindrome (312222242222213).

The spelling of 211220220200101 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred twenty million, two hundred thousand, one hundred one".