120100021202121 has 8 divisors (see below), whose sum is σ = 161018076308544. Its totient is φ = 79624323448560.

The previous prime is 120100021202107. The next prime is 120100021202159. The reversal of 120100021202121 is 121202120001021.

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

It is not a de Polignac number, because 120100021202121 - 2⁵ = 120100021202089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120100021202121.

It is not an unprimeable number, because it can be changed into a prime (120100021202621) 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, 110589337581 + ... + 110589338666.

It is an arithmetic number, because the mean of its divisors is an integer number (20127259538568).

Almost surely, 2^{120100021202121} is an apocalyptic number.

It is an amenable number.

120100021202121 is a deficient number, since it is larger than the sum of its proper divisors (40918055106423).

120100021202121 is a wasteful number, since it uses less digits than its factorization.

120100021202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221178676431.

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

Adding to 120100021202121 its reverse (121202120001021), we get a palindrome (241302141203142).

The spelling of 120100021202121 in words is "one hundred twenty trillion, one hundred billion, twenty-one million, two hundred two thousand, one hundred twenty-one".