211211020102101 has 8 divisors (see below), whose sum is σ = 290699038420224. Its totient is φ = 136265174259360.

The previous prime is 211211020102097. The next prime is 211211020102109. The reversal of 211211020102101 is 101201020112112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211211020102101 - 2² = 211211020102097 is a prime.

It is a super-2 number, since 2×211211020102101² (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 (211211020102109) 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, 1135543118736 + ... + 1135543118921.

It is an arithmetic number, because the mean of its divisors is an integer number (36337379802528).

Almost surely, 2^{211211020102101} is an apocalyptic number.

It is an amenable number.

211211020102101 is a deficient number, since it is larger than the sum of its proper divisors (79488018318123).

211211020102101 is a wasteful number, since it uses less digits than its factorization.

211211020102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271086237691.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211211020102101 its reverse (101201020112112), we get a palindrome (312412040214213).

The spelling of 211211020102101 in words is "two hundred eleven trillion, two hundred eleven billion, twenty million, one hundred two thousand, one hundred one".