20212545210452 has 48 divisors (see below), whose sum is σ = 41514338678400. Its totient is φ = 8430162816000.

The previous prime is 20212545210433. The next prime is 20212545210511. The reversal of 20212545210452 is 25401254521202.

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, 21493202 + ... + 22413897.

It is an arithmetic number, because the mean of its divisors is an integer number (864882055800).

Almost surely, 2^{20212545210452} is an apocalyptic number.

It is an amenable number.

20212545210452 is an abundant number, since it is smaller than the sum of its proper divisors (21301793467948).

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

20212545210452 is a wasteful number, since it uses less digits than its factorization.

20212545210452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43907552 (or 43907550 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 20212545210452 its reverse (25401254521202), we get a palindrome (45613799731654).

The spelling of 20212545210452 in words is "twenty trillion, two hundred twelve billion, five hundred forty-five million, two hundred ten thousand, four hundred fifty-two".