120212111001021 has 32 divisors (see below), whose sum is σ = 179360402350080. Its totient is φ = 71116230744000.

The previous prime is 120212111000987. The next prime is 120212111001041. The reversal of 120212111001021 is 120100111212021.

It is a happy number.

It is not a de Polignac number, because 120212111001021 - 2¹⁵ = 120212110968253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212111001041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329059251 + ... + 329424368.

It is an arithmetic number, because the mean of its divisors is an integer number (5605012573440).

Almost surely, 2^{120212111001021} is an apocalyptic number.

It is an amenable number.

120212111001021 is a deficient number, since it is larger than the sum of its proper divisors (59148291349059).

120212111001021 is a wasteful number, since it uses less digits than its factorization.

120212111001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658483817.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120212111001021 its reverse (120100111212021), we get a palindrome (240312222213042).

The spelling of 120212111001021 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred eleven million, one thousand, twenty-one".