20200120021212 has 24 divisors (see below), whose sum is σ = 47133690272256. Its totient is φ = 6733362356208.

The previous prime is 20200120021163. The next prime is 20200120021223. The reversal of 20200120021212 is 21212002100202.

It is a junction number, because it is equal to n+sod(n) for n = 20200120021191 and 20200120021200.

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, 10173763 + ... + 11996069.

It is an arithmetic number, because the mean of its divisors is an integer number (1963903761344).

Almost surely, 2^{20200120021212} is an apocalyptic number.

It is an amenable number.

20200120021212 is an abundant number, since it is smaller than the sum of its proper divisors (26933570251044).

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

20200120021212 is a wasteful number, since it uses less digits than its factorization.

20200120021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746057 (or 2746055 counting only the distinct ones).

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

Adding to 20200120021212 its reverse (21212002100202), we get a palindrome (41412122121414).

The spelling of 20200120021212 in words is "twenty trillion, two hundred billion, one hundred twenty million, twenty-one thousand, two hundred twelve".