20220221012 has 48 divisors (see below), whose sum is σ = 37778856192. Its totient is φ = 9448158720.

The previous prime is 20220221009. The next prime is 20220221023. The reversal of 20220221012 is 21012202202.

It is a congruent number.

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, 1166513 + ... + 1183719.

It is an arithmetic number, because the mean of its divisors is an integer number (787059504).

Almost surely, 2^20220221012 is an apocalyptic number.

It is an amenable number.

20220221012 is a deficient number, since it is larger than the sum of its proper divisors (17558635180).

20220221012 is a wasteful number, since it uses less digits than its factorization.

20220221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17528 (or 17526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20220221012 its reverse (21012202202), we get a palindrome (41232423214).

It can be divided in two parts, 202202 and 21012, that multiplied together give a palindrome (4248668424).

The spelling of 20220221012 in words is "twenty billion, two hundred twenty million, two hundred twenty-one thousand, twelve".