22021101020212 has 12 divisors (see below), whose sum is σ = 44042202040480. Its totient is φ = 9437614722936.

The previous prime is 22021101020161. The next prime is 22021101020221. The reversal of 22021101020212 is 21202010112022.

It is a happy number.

22021101020212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393233946762 + ... + 393233946817.

Almost surely, 2^{22021101020212} is an apocalyptic number.

It is an amenable number.

22021101020212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22021101020212 is a wasteful number, since it uses less digits than its factorization.

22021101020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786467893590 (or 786467893588 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22021101020212 its reverse (21202010112022), we get a palindrome (43223111132234).

The spelling of 22021101020212 in words is "twenty-two trillion, twenty-one billion, one hundred one million, twenty thousand, two hundred twelve".