20211201012 has 48 divisors (see below), whose sum is σ = 48456517760. Its totient is φ = 6551943552.

The previous prime is 20211200993. The next prime is 20211201019. The reversal of 20211201012 is 21010211202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211201019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072689 + ... + 1091367.

Almost surely, 2^20211201012 is an apocalyptic number.

It is an amenable number.

20211201012 is an abundant number, since it is smaller than the sum of its proper divisors (28245316748).

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

20211201012 is a wasteful number, since it uses less digits than its factorization.

20211201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21160 (or 21158 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20211201012 its reverse (21010211202), we get a palindrome (41221412214).

The spelling of 20211201012 in words is "twenty billion, two hundred eleven million, two hundred one thousand, twelve".