202101002070 has 128 divisors (see below), whose sum is σ = 553015185408. Its totient is φ = 46789987200.

The previous prime is 202101002069. The next prime is 202101002101. The reversal of 202101002070 is 70200101202.

202101002070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4859665 + ... + 4901075.

It is an arithmetic number, because the mean of its divisors is an integer number (4320431136).

Almost surely, 2^202101002070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202101002070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276507592704).

202101002070 is an abundant number, since it is smaller than the sum of its proper divisors (350914183338).

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

202101002070 is a wasteful number, since it uses less digits than its factorization.

202101002070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42098.

The product of its (nonzero) digits is 56, while the sum is 15.

Adding to 202101002070 its reverse (70200101202), we get a palindrome (272301103272).

The spelling of 202101002070 in words is "two hundred two billion, one hundred one million, two thousand, seventy".