103022311212 has 96 divisors (see below), whose sum is σ = 275677113600. Its totient is φ = 33254724096.

The previous prime is 103022311163. The next prime is 103022311219. The reversal of 103022311212 is 212113220301.

103022311212 is a `hidden beast` number, since 10 + 302 + 231 + 121 + 2 = 666.

It is a super-2 number, since 2×103022311212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (103022311219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306268 + ... + 547580.

It is an arithmetic number, because the mean of its divisors is an integer number (2871636600).

Almost surely, 2^103022311212 is an apocalyptic number.

103022311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103022311212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137838556800).

103022311212 is an abundant number, since it is smaller than the sum of its proper divisors (172654802388).

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

103022311212 is a wasteful number, since it uses less digits than its factorization.

103022311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241452 (or 241444 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103022311212 its reverse (212113220301), we get a palindrome (315135531513).

The spelling of 103022311212 in words is "one hundred three billion, twenty-two million, three hundred eleven thousand, two hundred twelve".