122011211210 has 64 divisors (see below), whose sum is σ = 261979633152. Its totient is φ = 40002564096.

The previous prime is 122011211209. The next prime is 122011211239. The reversal of 122011211210 is 12112110221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7489634 + ... + 7505906.

It is an arithmetic number, because the mean of its divisors is an integer number (4093431768).

Almost surely, 2^122011211210 is an apocalyptic number.

122011211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122011211210 is an abundant number, since it is smaller than the sum of its proper divisors (139968421942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122011211210 is a wasteful number, since it uses less digits than its factorization.

122011211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20967.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122011211210 its reverse (12112110221), we get a palindrome (134123321431).

The spelling of 122011211210 in words is "one hundred twenty-two billion, eleven million, two hundred eleven thousand, two hundred ten".