2121000101120 has 36 divisors (see below), whose sum is σ = 5080458057780. Its totient is φ = 848400039936.

The previous prime is 2121000101107. The next prime is 2121000101141. The reversal of 2121000101120 is 211010001212.

It can be written as a sum of positive squares in 2 ways, for example, as 919328121856 + 1201671979264 = 958816^2 + 1096208^2 .

It is a congruent number.

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, 828514385 + ... + 828516944.

Almost surely, 2^{2121000101120} is an apocalyptic number.

2121000101120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121000101120 is an abundant number, since it is smaller than the sum of its proper divisors (2959457956660).

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

2121000101120 is an equidigital number, since it uses as much as digits as its factorization.

2121000101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657031350 (or 1657031336 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2121000101120 its reverse (211010001212), we get a palindrome (2332010102332).

The spelling of 2121000101120 in words is "two trillion, one hundred twenty-one billion, one hundred one thousand, one hundred twenty".