101021100210 has 64 divisors (see below), whose sum is σ = 273805868160. Its totient is φ = 26497333440.

The previous prime is 101021100199. The next prime is 101021100233. The reversal of 101021100210 is 12001120101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101021100192 and 101021100201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3050352 + ... + 3083291.

It is an arithmetic number, because the mean of its divisors is an integer number (4278216690).

Almost surely, 2^101021100210 is an apocalyptic number.

101021100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101021100210 is an abundant number, since it is smaller than the sum of its proper divisors (172784767950).

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

101021100210 is a wasteful number, since it uses less digits than its factorization.

101021100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133720 (or 6133714 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101021100210 its reverse (12001120101), we get a palindrome (113022220311).

The spelling of 101021100210 in words is "one hundred one billion, twenty-one million, one hundred thousand, two hundred ten".