10121001112220 has 48 divisors (see below), whose sum is σ = 21608664331968. Its totient is φ = 3980902517760.

The previous prime is 10121001112213. The next prime is 10121001112279. The reversal of 10121001112220 is 2221110012101.

It is a junction number, because it is equal to n+sod(n) for n = 10121001112195 and 10121001112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3126884 + ... + 5478996.

It is an arithmetic number, because the mean of its divisors is an integer number (450180506916).

Almost surely, 2^{10121001112220} is an apocalyptic number.

10121001112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121001112220 is an abundant number, since it is smaller than the sum of its proper divisors (11487663219748).

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

10121001112220 is a wasteful number, since it uses less digits than its factorization.

10121001112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355710 (or 2355708 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10121001112220 its reverse (2221110012101), we get a palindrome (12342111124321).

The spelling of 10121001112220 in words is "ten trillion, one hundred twenty-one billion, one million, one hundred twelve thousand, two hundred twenty".