20152351212 has 48 divisors (see below), whose sum is σ = 53758182912. Its totient is φ = 5755824000.

The previous prime is 20152351151. The next prime is 20152351213. The reversal of 20152351212 is 21215325102.

It is a super-2 number, since 2×20152351212² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20152351213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212113 + ... + 292055.

It is an arithmetic number, because the mean of its divisors is an integer number (1119962144).

Almost surely, 2^20152351212 is an apocalyptic number.

It is an amenable number.

20152351212 is an abundant number, since it is smaller than the sum of its proper divisors (33605831700).

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

20152351212 is a wasteful number, since it uses less digits than its factorization.

20152351212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82958 (or 82956 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20152351212 its reverse (21215325102), we get a palindrome (41367676314).

The spelling of 20152351212 in words is "twenty billion, one hundred fifty-two million, three hundred fifty-one thousand, two hundred twelve".