2021202021102 has 16 divisors (see below), whose sum is σ = 4409895318912. Its totient is φ = 612485460920.

The previous prime is 2021202021073. The next prime is 2021202021103. The reversal of 2021202021102 is 2011202021202.

It is a super-2 number, since 2×2021202021102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021202021103) 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, 15312136458 + ... + 15312136589.

It is an arithmetic number, because the mean of its divisors is an integer number (275618457432).

Almost surely, 2^{2021202021102} is an apocalyptic number.

2021202021102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021202021102 is an abundant number, since it is smaller than the sum of its proper divisors (2388693297810).

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

2021202021102 is a wasteful number, since it uses less digits than its factorization.

2021202021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30624273063.

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

Adding to 2021202021102 its reverse (2011202021202), we get a palindrome (4032404042304).

It can be divided in two parts, 202120 and 2021102, that added together give a palindrome (2223222).

The spelling of 2021202021102 in words is "two trillion, twenty-one billion, two hundred two million, twenty-one thousand, one hundred two".