27022021212 has 12 divisors (see below), whose sum is σ = 63051382856. Its totient is φ = 9007340400.

The previous prime is 27022021199. The next prime is 27022021219. The reversal of 27022021212 is 21212022072.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27022021219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125917539 + ... + 1125917562.

Almost surely, 2^27022021212 is an apocalyptic number.

It is an amenable number.

27022021212 is an abundant number, since it is smaller than the sum of its proper divisors (36029361644).

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

27022021212 is a wasteful number, since it uses less digits than its factorization.

27022021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251835108 (or 2251835106 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 27022021212 its reverse (21212022072), we get a palindrome (48234043284).

The spelling of 27022021212 in words is "twenty-seven billion, twenty-two million, twenty-one thousand, two hundred twelve".