120000212122122 has 12 divisors (see below), whose sum is σ = 260000459597970. Its totient is φ = 40000070707368.

The previous prime is 120000212122121. The next prime is 120000212122139. The reversal of 120000212122122 is 221221212000021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117798701027121 + 2201511095001 = 10853511^2 + 1483749^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6666678451229 = 120000212122122 / (1 + 2 + 0 + 0 + 0 + 0 + 2 + 1 + 2 + 1 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 120000212122095 and 120000212122104.

It is not an unprimeable number, because it can be changed into a prime (120000212122121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3333339225597 + ... + 3333339225632.

Almost surely, 2^{120000212122122} is an apocalyptic number.

120000212122122 is an abundant number, since it is smaller than the sum of its proper divisors (140000247475848).

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

120000212122122 is a wasteful number, since it uses less digits than its factorization.

120000212122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666678451237 (or 6666678451234 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120000212122122 its reverse (221221212000021), we get a palindrome (341221424122143).

The spelling of 120000212122122 in words is "one hundred twenty trillion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".