122212102420 has 12 divisors (see below), whose sum is σ = 256645415124. Its totient is φ = 48884840960.

The previous prime is 122212102399. The next prime is 122212102421. The reversal of 122212102420 is 24201212221.

It can be written as a sum of positive squares in 2 ways, for example, as 42860592784 + 79351509636 = 207028^2 + 281694^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212102421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055302541 + ... + 3055302580.

It is an arithmetic number, because the mean of its divisors is an integer number (21387117927).

Almost surely, 2^122212102420 is an apocalyptic number.

122212102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212102420 is an abundant number, since it is smaller than the sum of its proper divisors (134433312704).

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

122212102420 is a wasteful number, since it uses less digits than its factorization.

122212102420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110605130 (or 6110605128 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122212102420 its reverse (24201212221), we get a palindrome (146413314641).

The spelling of 122212102420 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred two thousand, four hundred twenty".