20212541452 has 24 divisors (see below), whose sum is σ = 36968924160. Its totient is φ = 9657177600.

The previous prime is 20212541407. The next prime is 20212541467. The reversal of 20212541452 is 25414521202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212541452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886924 + ... + 909427.

It is an arithmetic number, because the mean of its divisors is an integer number (1540371840).

Almost surely, 2^20212541452 is an apocalyptic number.

It is an amenable number.

20212541452 is a deficient number, since it is larger than the sum of its proper divisors (16756382708).

20212541452 is a wasteful number, since it uses less digits than its factorization.

20212541452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796481 (or 1796479 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The spelling of 20212541452 in words is "twenty billion, two hundred twelve million, five hundred forty-one thousand, four hundred fifty-two".