211222101010 has 32 divisors (see below), whose sum is σ = 380967753600. Its totient is φ = 84318353280.

The previous prime is 211222100993. The next prime is 211222101019. The reversal of 211222101010 is 10101222112.

It is a super-2 number, since 2×211222101010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222101019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10804945 + ... + 10824475.

It is an arithmetic number, because the mean of its divisors is an integer number (11905242300).

Almost surely, 2^211222101010 is an apocalyptic number.

211222101010 is a deficient number, since it is larger than the sum of its proper divisors (169745652590).

211222101010 is a wasteful number, since it uses less digits than its factorization.

211222101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21666.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211222101010 its reverse (10101222112), we get a palindrome (221323323122).

The spelling of 211222101010 in words is "two hundred eleven billion, two hundred twenty-two million, one hundred one thousand, ten".