211220010122 has 128 divisors (see below), whose sum is σ = 373955788800. Its totient is φ = 88473772800.

The previous prime is 211220010121. The next prime is 211220010161. The reversal of 211220010122 is 221010022112.

It is a super-2 number, since 2×211220010122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211220010097 and 211220010106.

It is not an unprimeable number, because it can be changed into a prime (211220010121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1001042597 + ... + 1001042807.

It is an arithmetic number, because the mean of its divisors is an integer number (2921529600).

Almost surely, 2^211220010122 is an apocalyptic number.

211220010122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211220010122 is a deficient number, since it is larger than the sum of its proper divisors (162735778678).

211220010122 is a wasteful number, since it uses less digits than its factorization.

211220010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211220010122 its reverse (221010022112), we get a palindrome (432230032234).

The spelling of 211220010122 in words is "two hundred eleven billion, two hundred twenty million, ten thousand, one hundred twenty-two".