20210121001202 has 16 divisors (see below), whose sum is σ = 33071193464832. Its totient is φ = 9186394644720.

The previous prime is 20210121001181. The next prime is 20210121001219. The reversal of 20210121001202 is 20210012101202.

It is a super-2 number, since 2×20210121001202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9560048 + ... + 11481060.

It is an arithmetic number, because the mean of its divisors is an integer number (2066949591552).

Almost surely, 2^{20210121001202} is an apocalyptic number.

20210121001202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20210121001202 is a deficient number, since it is larger than the sum of its proper divisors (12861072463630).

20210121001202 is a wasteful number, since it uses less digits than its factorization.

20210121001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399233.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20210121001202 its reverse (20210012101202), we get a palindrome (40420133102404).

The spelling of 20210121001202 in words is "twenty trillion, two hundred ten billion, one hundred twenty-one million, one thousand, two hundred two".