120212122221020 has 24 divisors (see below), whose sum is σ = 255486968193744. Its totient is φ = 47505513358976.

The previous prime is 120212122221017. The next prime is 120212122221031. The reversal of 120212122221020 is 20122221212021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120212122220983 and 120212122221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36208468889 + ... + 36208472208.

It is an arithmetic number, because the mean of its divisors is an integer number (10645290341406).

Almost surely, 2^{120212122221020} is an apocalyptic number.

120212122221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120212122221020 is an abundant number, since it is smaller than the sum of its proper divisors (135274845972724).

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

120212122221020 is a wasteful number, since it uses less digits than its factorization.

120212122221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72416941189 (or 72416941187 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 120212122221020 its reverse (20122221212021), we get a palindrome (140334343433041).

The spelling of 120212122221020 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, twenty".