211220122100122 has 16 divisors (see below), whose sum is σ = 318577185793152. Its totient is φ = 105028498653120.

The previous prime is 211220122100101. The next prime is 211220122100123. The reversal of 211220122100122 is 221001221022112.

It is a super-2 number, since 2×211220122100122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211220122100122.

It is not an unprimeable number, because it can be changed into a prime (211220122100123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192406258 + ... + 193500925.

It is an arithmetic number, because the mean of its divisors is an integer number (19911074112072).

Almost surely, 2^{211220122100122} is an apocalyptic number.

211220122100122 is a deficient number, since it is larger than the sum of its proper divisors (107357063693030).

211220122100122 is a wasteful number, since it uses less digits than its factorization.

211220122100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385908693.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211220122100122 its reverse (221001221022112), we get a palindrome (432221343122234).

The spelling of 211220122100122 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".