20011322212 has 24 divisors (see below), whose sum is σ = 40188727040. Its totient is φ = 8540691840.

The previous prime is 20011322209. The next prime is 20011322231. The reversal of 20011322212 is 21222311002.

It is a happy number.

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, 1476012 + ... + 1489507.

Almost surely, 2^20011322212 is an apocalyptic number.

It is an amenable number.

20011322212 is an abundant number, since it is smaller than the sum of its proper divisors (20177404828).

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

20011322212 is a wasteful number, since it uses less digits than its factorization.

20011322212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2965771 (or 2965769 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20011322212 its reverse (21222311002), we get a palindrome (41233633214).

The spelling of 20011322212 in words is "twenty billion, eleven million, three hundred twenty-two thousand, two hundred twelve".