20112146890212 has 96 divisors (see below), whose sum is σ = 51728163300352. Its totient is φ = 6042726458496.

The previous prime is 20112146890189. The next prime is 20112146890247. The reversal of 20112146890212 is 21209864121102.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23370633 + ... + 24215919.

Almost surely, 2^{20112146890212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112146890212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25864081650176).

20112146890212 is an abundant number, since it is smaller than the sum of its proper divisors (31616016410140).

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

20112146890212 is a wasteful number, since it uses less digits than its factorization.

20112146890212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848897 (or 848895 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 20112146890212 in words is "twenty trillion, one hundred twelve billion, one hundred forty-six million, eight hundred ninety thousand, two hundred twelve".