20212015112 has 8 divisors (see below), whose sum is σ = 37897528350. Its totient is φ = 10106007552.

The previous prime is 20212015081. The next prime is 20212015121. The reversal of 20212015112 is 21151021202.

It can be written as a sum of positive squares in only one way, i.e., 18973960516 + 1238054596 = 137746^2 + 35186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263250937 + ... + 1263250952.

Almost surely, 2^20212015112 is an apocalyptic number.

It is an amenable number.

20212015112 is a deficient number, since it is larger than the sum of its proper divisors (17685513238).

20212015112 is a wasteful number, since it uses less digits than its factorization.

20212015112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526501895 (or 2526501891 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 20212015112 its reverse (21151021202), we get a palindrome (41363036314).

The spelling of 20212015112 in words is "twenty billion, two hundred twelve million, fifteen thousand, one hundred twelve".