211020120122 has 64 divisors (see below), whose sum is σ = 372083712000. Its totient is φ = 87876653760.

The previous prime is 211020120053. The next prime is 211020120127. The reversal of 211020120122 is 221021020112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 211020120097 and 211020120106.

It is not an unprimeable number, because it can be changed into a prime (211020120127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119965079 + ... + 119966837.

It is an arithmetic number, because the mean of its divisors is an integer number (5813808000).

Almost surely, 2^211020120122 is an apocalyptic number.

211020120122 is a deficient number, since it is larger than the sum of its proper divisors (161063591878).

211020120122 is a wasteful number, since it uses less digits than its factorization.

211020120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731.

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

Adding to 211020120122 its reverse (221021020112), we get a palindrome (432041140234).

The spelling of 211020120122 in words is "two hundred eleven billion, twenty million, one hundred twenty thousand, one hundred twenty-two".