20221011012 has 48 divisors (see below), whose sum is σ = 50661459072. Its totient is φ = 6254492160.

The previous prime is 20221011001. The next prime is 20221011071. The reversal of 20221011012 is 21011012202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683563 + ... + 712530.

It is an arithmetic number, because the mean of its divisors is an integer number (1055447064).

Almost surely, 2^20221011012 is an apocalyptic number.

It is an amenable number.

20221011012 is an abundant number, since it is smaller than the sum of its proper divisors (30440448060).

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

20221011012 is a wasteful number, since it uses less digits than its factorization.

20221011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396188 (or 1396186 counting only the distinct ones).

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

Adding to 20221011012 its reverse (21011012202), we get a palindrome (41232023214).

It can be divided in two parts, 202 and 21011012, that multiplied together give a palindrome (4244224424).

The spelling of 20221011012 in words is "twenty billion, two hundred twenty-one million, eleven thousand, twelve".