20012212012 has 48 divisors (see below), whose sum is σ = 38663168544. Its totient is φ = 9004608000.

The previous prime is 20012212009. The next prime is 20012212067. The reversal of 20012212012 is 21021221002.

It is a happy number.

It is a super-2 number, since 2×20012212012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20012211983 and 20012212001.

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, 4114462 + ... + 4119322.

It is an arithmetic number, because the mean of its divisors is an integer number (805482678).

Almost surely, 2^20012212012 is an apocalyptic number.

It is an amenable number.

20012212012 is a deficient number, since it is larger than the sum of its proper divisors (18650956532).

20012212012 is a wasteful number, since it uses less digits than its factorization.

20012212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6850 (or 6848 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012212012 its reverse (21021221002), we get a palindrome (41033433014).

The spelling of 20012212012 in words is "twenty billion, twelve million, two hundred twelve thousand, twelve".