211002212212021 has 8 divisors (see below), whose sum is σ = 213051190376960. Its totient is φ = 208953241989552.

The previous prime is 211002212212009. The next prime is 211002212212027. The reversal of 211002212212021 is 120212212200112.

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

It is a cyclic number.

It is not a de Polignac number, because 211002212212021 - 2²⁷ = 211002077994293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211002212212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002212212027) 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, 61084540 + ... + 64446298.

It is an arithmetic number, because the mean of its divisors is an integer number (26631398797120).

Almost surely, 2^{211002212212021} is an apocalyptic number.

It is an amenable number.

211002212212021 is a deficient number, since it is larger than the sum of its proper divisors (2048978164939).

211002212212021 is a wasteful number, since it uses less digits than its factorization.

211002212212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971235.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211002212212021 its reverse (120212212200112), we get a palindrome (331214424412133).

The spelling of 211002212212021 in words is "two hundred eleven trillion, two billion, two hundred twelve million, two hundred twelve thousand, twenty-one".