211212122012 has 6 divisors (see below), whose sum is σ = 369621213528. Its totient is φ = 105606061004.

The previous prime is 211212121969. The next prime is 211212122021. The reversal of 211212122012 is 210221212112.

It is a super-2 number, since 2×211212122012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26401515248 + ... + 26401515255.

It is an arithmetic number, because the mean of its divisors is an integer number (61603535588).

Almost surely, 2^211212122012 is an apocalyptic number.

It is an amenable number.

211212122012 is a deficient number, since it is larger than the sum of its proper divisors (158409091516).

211212122012 is a wasteful number, since it uses less digits than its factorization.

211212122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52803030507 (or 52803030505 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212122012 its reverse (210221212112), we get a palindrome (421433334124).

The spelling of 211212122012 in words is "two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, twelve".