101002100020210 has 16 divisors (see below), whose sum is σ = 181804869630936. Its totient is φ = 40400597875968.

The previous prime is 101002100020201. The next prime is 101002100020253. The reversal of 101002100020210 is 12020001200101.

It can be written as a sum of positive squares in 4 ways, for example, as 99815545137529 + 1186554882681 = 9990773^2 + 1089291^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 28509687 + ... + 31856026.

Almost surely, 2^{101002100020210} is an apocalyptic number.

101002100020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101002100020210 is a deficient number, since it is larger than the sum of its proper divisors (80802769610726).

101002100020210 is a wasteful number, since it uses less digits than its factorization.

101002100020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60533037.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101002100020210 its reverse (12020001200101), we get a palindrome (113022101220311).

The spelling of 101002100020210 in words is "one hundred one trillion, two billion, one hundred million, twenty thousand, two hundred ten".