211220002120101 has 32 divisors (see below), whose sum is σ = 314738287839360. Its totient is φ = 125103520276224.

The previous prime is 211220002120079. The next prime is 211220002120133. The reversal of 211220002120101 is 101021200022112.

It is not a de Polignac number, because 211220002120101 - 2⁵ = 211220002120069 is a prime.

It is a super-2 number, since 2×211220002120101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220002120181) 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, 294207855 + ... + 294924908.

It is an arithmetic number, because the mean of its divisors is an integer number (9835571494980).

Almost surely, 2^{211220002120101} is an apocalyptic number.

It is an amenable number.

211220002120101 is a deficient number, since it is larger than the sum of its proper divisors (103518285719259).

211220002120101 is a wasteful number, since it uses less digits than its factorization.

211220002120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589133125.

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

Adding to 211220002120101 its reverse (101021200022112), we get a palindrome (312241202142213).

The spelling of 211220002120101 in words is "two hundred eleven trillion, two hundred twenty billion, two million, one hundred twenty thousand, one hundred one".