122012112021200 has 60 divisors (see below), whose sum is σ = 293183813820300. Its totient is φ = 48796567649280.

The previous prime is 122012112021197. The next prime is 122012112021227. The reversal of 122012112021200 is 2120211210221.

It can be written as a sum of positive squares in 6 ways, for example, as 8193768850576 + 113818343170624 = 2862476^2 + 10668568^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23504375 + ... + 28221974.

It is an arithmetic number, because the mean of its divisors is an integer number (4886396897005).

Almost surely, 2^{122012112021200} is an apocalyptic number.

122012112021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122012112021200 is an abundant number, since it is smaller than the sum of its proper divisors (171171701799100).

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

122012112021200 is a wasteful number, since it uses less digits than its factorization.

122012112021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51732264 (or 51732253 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122012112021200 its reverse (2120211210221), we get a palindrome (124132323231421).

The spelling of 122012112021200 in words is "one hundred twenty-two trillion, twelve billion, one hundred twelve million, twenty-one thousand, two hundred".