20010212120 has 32 divisors (see below), whose sum is σ = 45037933200. Its totient is φ = 8001426048.

The previous prime is 20010212093. The next prime is 20010212147. The reversal of 20010212120 is 2121201002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20010212093) and next prime (20010212147).

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, 41126 + ... + 204234.

Almost surely, 2^20010212120 is an apocalyptic number.

20010212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010212120 is an abundant number, since it is smaller than the sum of its proper divisors (25027721080).

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

20010212120 is a wasteful number, since it uses less digits than its factorization.

20010212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166187 (or 166183 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20010212120 its reverse (2121201002), we get a palindrome (22131413122).

The spelling of 20010212120 in words is "twenty billion, ten million, two hundred twelve thousand, one hundred twenty".