21112211201210 has 32 divisors (see below), whose sum is σ = 40756840709760. Its totient is φ = 7849465610688.

The previous prime is 21112211201131. The next prime is 21112211201239. The reversal of 21112211201210 is 1210211221112.

It is a super-2 number, since 2×21112211201210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048262582 + ... + 1048282721.

It is an arithmetic number, because the mean of its divisors is an integer number (1273651272180).

Almost surely, 2^{21112211201210} is an apocalyptic number.

21112211201210 is a deficient number, since it is larger than the sum of its proper divisors (19644629508550).

21112211201210 is a wasteful number, since it uses less digits than its factorization.

21112211201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096545382.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21112211201210 its reverse (1210211221112), we get a palindrome (22322422422322).

The spelling of 21112211201210 in words is "twenty-one trillion, one hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred ten".