2121002021202 has 16 divisors (see below), whose sum is σ = 4244972571840. Its totient is φ = 706505918832.

The previous prime is 2121002021197. The next prime is 2121002021207. The reversal of 2121002021202 is 2021202001212.

It is an interprime number because it is at equal distance from previous prime (2121002021197) and next prime (2121002021207).

It is not an unprimeable number, because it can be changed into a prime (2121002021207) 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, 123679438 + ... + 123696585.

It is an arithmetic number, because the mean of its divisors is an integer number (265310785740).

Almost surely, 2^{2121002021202} is an apocalyptic number.

2121002021202 is an abundant number, since it is smaller than the sum of its proper divisors (2123970550638).

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

2121002021202 is a wasteful number, since it uses less digits than its factorization.

2121002021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247377457.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2121002021202 its reverse (2021202001212), we get a palindrome (4142204022414).

The spelling of 2121002021202 in words is "two trillion, one hundred twenty-one billion, two million, twenty-one thousand, two hundred two".