2120121110202 has 32 divisors (see below), whose sum is σ = 4355589055104. Its totient is φ = 687489105600.

The previous prime is 2120121110201. The next prime is 2120121110203. The reversal of 2120121110202 is 2020111210212.

It is an interprime number because it is at equal distance from previous prime (2120121110201) and next prime (2120121110203).

It is a super-2 number, since 2×2120121110202² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2120121110201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486427 + ... + 2115857.

It is an arithmetic number, because the mean of its divisors is an integer number (136112157972).

Almost surely, 2^{2120121110202} is an apocalyptic number.

2120121110202 is an abundant number, since it is smaller than the sum of its proper divisors (2235467944902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120121110202 is a wasteful number, since it uses less digits than its factorization.

2120121110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635334.

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

Adding to 2120121110202 its reverse (2020111210212), we get a palindrome (4140232320414).

The spelling of 2120121110202 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, two hundred two".