20212211334 has 64 divisors (see below), whose sum is σ = 48343412736. Its totient is φ = 5512800384.

The previous prime is 20212211329. The next prime is 20212211363. The reversal of 20212211334 is 43311221202.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20212211334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40342 + ... + 205065.

It is an arithmetic number, because the mean of its divisors is an integer number (755365824).

Almost surely, 2^20212211334 is an apocalyptic number.

20212211334 is an abundant number, since it is smaller than the sum of its proper divisors (28131201402).

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

20212211334 is a wasteful number, since it uses less digits than its factorization.

20212211334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245509.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20212211334 its reverse (43311221202), we get a palindrome (63523432536).

The spelling of 20212211334 in words is "twenty billion, two hundred twelve million, two hundred eleven thousand, three hundred thirty-four".