16122072212 has 12 divisors (see below), whose sum is σ = 28218199380. Its totient is φ = 8059729536.

The previous prime is 16122072149. The next prime is 16122072217. The reversal of 16122072212 is 21227022161.

It can be written as a sum of positive squares in 2 ways, for example, as 9626356996 + 6495715216 = 98114^2 + 80596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16122072217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298613 + ... + 348444.

It is an arithmetic number, because the mean of its divisors is an integer number (2351516615).

Almost surely, 2^16122072212 is an apocalyptic number.

It is an amenable number.

16122072212 is a deficient number, since it is larger than the sum of its proper divisors (12096127168).

16122072212 is a wasteful number, since it uses less digits than its factorization.

16122072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653290 (or 653288 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 16122072212 its reverse (21227022161), we get a palindrome (37349094373).

The spelling of 16122072212 in words is "sixteen billion, one hundred twenty-two million, seventy-two thousand, two hundred twelve".