122213521012 has 24 divisors (see below), whose sum is σ = 233454352320. Its totient is φ = 55518831360.

The previous prime is 122213520983. The next prime is 122213521013. The reversal of 122213521012 is 210125312221.

It is a super-2 number, since 2×122213521012² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213521013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743712 + ... + 893047.

It is an arithmetic number, because the mean of its divisors is an integer number (9727264680).

Almost surely, 2^122213521012 is an apocalyptic number.

It is an amenable number.

122213521012 is a deficient number, since it is larger than the sum of its proper divisors (111240831308).

122213521012 is a wasteful number, since it uses less digits than its factorization.

122213521012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638471 (or 1638469 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 122213521012 its reverse (210125312221), we get a palindrome (332338833233).

The spelling of 122213521012 in words is "one hundred twenty-two billion, two hundred thirteen million, five hundred twenty-one thousand, twelve".