211211022212001 has 48 divisors (see below), whose sum is σ = 353455868496640. Its totient is φ = 119034046264320.

The previous prime is 211211022211979. The next prime is 211211022212051. The reversal of 211211022212001 is 100212220112112.

211211022212001 is a `hidden beast` number, since 21 + 121 + 102 + 221 + 200 + 1 = 666.

It is not a de Polignac number, because 211211022212001 - 2¹⁰ = 211211022210977 is a prime.

It is a super-2 number, since 2×211211022212001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211022212051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118547196 + ... + 120315666.

Almost surely, 2^{211211022212001} is an apocalyptic number.

211211022212001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211211022212001 is a deficient number, since it is larger than the sum of its proper divisors (142244846284639).

211211022212001 is a wasteful number, since it uses less digits than its factorization.

211211022212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794526 (or 1794523 counting only the distinct ones).

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

Adding to 211211022212001 its reverse (100212220112112), we get a palindrome (311423242324113).

The spelling of 211211022212001 in words is "two hundred eleven trillion, two hundred eleven billion, twenty-two million, two hundred twelve thousand, one".