22021012020212 has 48 divisors (see below), whose sum is σ = 39474988392000. Its totient is φ = 10745170988544.

The previous prime is 22021012020197. The next prime is 22021012020223. The reversal of 22021012020212 is 21202021012022.

It is a happy number.

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, 694018364 + ... + 694050092.

It is an arithmetic number, because the mean of its divisors is an integer number (822395591500).

Almost surely, 2^{22021012020212} is an apocalyptic number.

It is an amenable number.

22021012020212 is a deficient number, since it is larger than the sum of its proper divisors (17453976371788).

22021012020212 is a wasteful number, since it uses less digits than its factorization.

22021012020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53088 (or 53086 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021012020212 its reverse (21202021012022), we get a palindrome (43223033032234).

The spelling of 22021012020212 in words is "twenty-two trillion, twenty-one billion, twelve million, twenty thousand, two hundred twelve".