20012232210 has 32 divisors (see below), whose sum is σ = 50854614912. Its totient is φ = 5022677760.

The previous prime is 20012232199. The next prime is 20012232263. The reversal of 20012232210 is 1223221002.

It is a happy number.

It is a super-2 number, since 2×20012232210² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20012232210.

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, 19619326 + ... + 19620345.

It is an arithmetic number, because the mean of its divisors is an integer number (1589206716).

Almost surely, 2^20012232210 is an apocalyptic number.

20012232210 is an abundant number, since it is smaller than the sum of its proper divisors (30842382702).

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

20012232210 is a wasteful number, since it uses less digits than its factorization.

20012232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39239698.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20012232210 its reverse (1223221002), we get a palindrome (21235453212).

The spelling of 20012232210 in words is "twenty billion, twelve million, two hundred thirty-two thousand, two hundred ten".