211222122323012 has 12 divisors (see below), whose sum is σ = 373298503314156. Its totient is φ = 104565407090400.

The previous prime is 211222122322993. The next prime is 211222122323027. The reversal of 211222122323012 is 210323221222112.

It can be written as a sum of positive squares in 2 ways, for example, as 139654346191936 + 71567776131076 = 11817544^2 + 8459774^2 .

It is a super-2 number, since 2×211222122323012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261413517323 + ... + 261413518130.

It is an arithmetic number, because the mean of its divisors is an integer number (31108208609513).

Almost surely, 2^{211222122323012} is an apocalyptic number.

It is an amenable number.

211222122323012 is a deficient number, since it is larger than the sum of its proper divisors (162076380991144).

211222122323012 is a wasteful number, since it uses less digits than its factorization.

211222122323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522827035558 (or 522827035556 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 211222122323012 its reverse (210323221222112), we get a palindrome (421545343545124).

The spelling of 211222122323012 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, three hundred twenty-three thousand, twelve".