1010120001220 has 96 divisors (see below), whose sum is σ = 2418570161280. Its totient is φ = 350993879040.

The previous prime is 1010120001197. The next prime is 1010120001223. The reversal of 1010120001220 is 221000210101.

1010120001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1010120001197 and 1010120001206.

It is not an unprimeable number, because it can be changed into a prime (1010120001223) 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, 197254 + ... + 1434973.

It is an arithmetic number, because the mean of its divisors is an integer number (25193439180).

Almost surely, 2^{1010120001220} is an apocalyptic number.

1010120001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010120001220 is an abundant number, since it is smaller than the sum of its proper divisors (1408450160060).

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

1010120001220 is a wasteful number, since it uses less digits than its factorization.

1010120001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632373 (or 1632371 counting only the distinct ones).

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

Adding to 1010120001220 its reverse (221000210101), we get a palindrome (1231120211321).

The spelling of 1010120001220 in words is "one trillion, ten billion, one hundred twenty million, one thousand, two hundred twenty".