10120221012 has 24 divisors (see below), whose sum is σ = 25760562912. Its totient is φ = 3066733600.

The previous prime is 10120220987. The next prime is 10120221029. The reversal of 10120221012 is 21012202101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38334039 + ... + 38334302.

It is an arithmetic number, because the mean of its divisors is an integer number (1073356788).

Almost surely, 2^10120221012 is an apocalyptic number.

10120221012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120221012 is an abundant number, since it is smaller than the sum of its proper divisors (15640341900).

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

10120221012 is a wasteful number, since it uses less digits than its factorization.

10120221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76668359 (or 76668357 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10120221012 its reverse (21012202101), we get a palindrome (31132423113).

It can be divided in two parts, 10120 and 221012, that added together give a palindrome (231132).

The spelling of 10120221012 in words is "ten billion, one hundred twenty million, two hundred twenty-one thousand, twelve".