211211212222002 has 16 divisors (see below), whose sum is σ = 422423316715392. Its totient is φ = 70403588695440.

The previous prime is 211211212221983. The next prime is 211211212222033. The reversal of 211211212222002 is 200222212112112.

It is a super-2 number, since 2×211211212222002² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211212222002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34080874 + ... + 39798597.

It is an arithmetic number, because the mean of its divisors is an integer number (26401457294712).

Almost surely, 2^{211211212222002} is an apocalyptic number.

211211212222002 is an abundant number, since it is smaller than the sum of its proper divisors (211212104493390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211211212222002 is a wasteful number, since it uses less digits than its factorization.

211211212222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74355953.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211211212222002 its reverse (200222212112112), we get a palindrome (411433424334114).

The spelling of 211211212222002 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, two".