20200120201212 has 48 divisors (see below), whose sum is σ = 53901102178560. Its totient is φ = 5767807738752.

The previous prime is 20200120201081. The next prime is 20200120201249. The reversal of 20200120201212 is 21210202100202.

It is a super-2 number, since 2×20200120201212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20200120201191 and 20200120201200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76016073 + ... + 76281344.

It is an arithmetic number, because the mean of its divisors is an integer number (1122939628720).

Almost surely, 2^{20200120201212} is an apocalyptic number.

It is an amenable number.

20200120201212 is an abundant number, since it is smaller than the sum of its proper divisors (33700981977348).

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

20200120201212 is a wasteful number, since it uses less digits than its factorization.

20200120201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152299010 (or 152299008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20200120201212 its reverse (21210202100202), we get a palindrome (41410322301414).

The spelling of 20200120201212 in words is "twenty trillion, two hundred billion, one hundred twenty million, two hundred one thousand, two hundred twelve".