10120101220 has 24 divisors (see below), whose sum is σ = 21359016000. Its totient is φ = 4027696992.

The previous prime is 10120101197. The next prime is 10120101247. The reversal of 10120101220 is 2210102101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10120101197 and 10120101206.

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, 1267390 + ... + 1275349.

It is an arithmetic number, because the mean of its divisors is an integer number (889959000).

Almost surely, 2^10120101220 is an apocalyptic number.

10120101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120101220 is an abundant number, since it is smaller than the sum of its proper divisors (11238914780).

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

10120101220 is a wasteful number, since it uses less digits than its factorization.

10120101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2542947 (or 2542945 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10120101220 its reverse (2210102101), we get a palindrome (12330203321).

The spelling of 10120101220 in words is "ten billion, one hundred twenty million, one hundred one thousand, two hundred twenty".