10121120201220 has 48 divisors (see below), whose sum is σ = 32387584645248. Its totient is φ = 2313398903040.

The previous prime is 10121120201083. The next prime is 10121120201249. The reversal of 10121120201220 is 2210202112101.

It is a super-3 number, since 3×10121120201220³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10121120201220.

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, 12048952201 + ... + 12048953040.

It is an arithmetic number, because the mean of its divisors is an integer number (674741346776).

Almost surely, 2^{10121120201220} is an apocalyptic number.

10121120201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121120201220 is an abundant number, since it is smaller than the sum of its proper divisors (22266464444028).

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

10121120201220 is a wasteful number, since it uses less digits than its factorization.

10121120201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24097905260 (or 24097905258 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10121120201220 its reverse (2210202112101), we get a palindrome (12331322313321).

The spelling of 10121120201220 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty million, two hundred one thousand, two hundred twenty".