10121001011020 has 12 divisors (see below), whose sum is σ = 21254102123184. Its totient is φ = 4048400404400.

The previous prime is 10121001010997. The next prime is 10121001011047. The reversal of 10121001011020 is 2011010012101.

10121001011020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10121001011020² (a number of 27 digits) contains 22 as substring.

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 = 10121001010988 and 10121001011006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253025025256 + ... + 253025025295.

It is an arithmetic number, because the mean of its divisors is an integer number (1771175176932).

Almost surely, 2^{10121001011020} is an apocalyptic number.

10121001011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121001011020 is an abundant number, since it is smaller than the sum of its proper divisors (11133101112164).

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

10121001011020 is a wasteful number, since it uses less digits than its factorization.

10121001011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506050050560 (or 506050050558 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10121001011020 its reverse (2011010012101), we get a palindrome (12132011023121).

The spelling of 10121001011020 in words is "ten trillion, one hundred twenty-one billion, one million, eleven thousand, twenty".