121120020012021 has 8 divisors (see below), whose sum is σ = 164230535609760. Its totient is φ = 79378092211152.

The previous prime is 121120020011989. The next prime is 121120020012059. The reversal of 121120020012021 is 120210020021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121120020012021 - 2⁵ = 121120020011989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120020082021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342146949010 + ... + 342146949363.

It is an arithmetic number, because the mean of its divisors is an integer number (20528816951220).

Almost surely, 2^{121120020012021} is an apocalyptic number.

It is an amenable number.

121120020012021 is a deficient number, since it is larger than the sum of its proper divisors (43110515597739).

121120020012021 is an equidigital number, since it uses as much as digits as its factorization.

121120020012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684293898435.

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

Adding to 121120020012021 its reverse (120210020021121), we get a palindrome (241330040033142).

The spelling of 121120020012021 in words is "one hundred twenty-one trillion, one hundred twenty billion, twenty million, twelve thousand, twenty-one".