20120100122121 has 8 divisors (see below), whose sum is σ = 26847807842304. Its totient is φ = 13402896241680.

The previous prime is 20120100122093. The next prime is 20120100122137. The reversal of 20120100122121 is 12122100102102.

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

It is not a de Polignac number, because 20120100122121 - 2¹¹ = 20120100120073 is a prime.

It is a super-2 number, since 2×20120100122121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20120100122121.

It is not an unprimeable number, because it can be changed into a prime (20120100162121) 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, 2625955465 + ... + 2625963126.

It is an arithmetic number, because the mean of its divisors is an integer number (3355975980288).

Almost surely, 2^{20120100122121} is an apocalyptic number.

It is an amenable number.

20120100122121 is a deficient number, since it is larger than the sum of its proper divisors (6727707720183).

20120100122121 is a wasteful number, since it uses less digits than its factorization.

20120100122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251919871.

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

Adding to 20120100122121 its reverse (12122100102102), we get a palindrome (32242200224223).

The spelling of 20120100122121 in words is "twenty trillion, one hundred twenty billion, one hundred million, one hundred twenty-two thousand, one hundred twenty-one".