101020011210 has 96 divisors (see below), whose sum is σ = 267886277568. Its totient is φ = 26406362880.

The previous prime is 101020011119. The next prime is 101020011259. The reversal of 101020011210 is 12110020101.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101020011192 and 101020011201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1023745 + ... + 1118075.

It is an arithmetic number, because the mean of its divisors is an integer number (2790482058).

Almost surely, 2^101020011210 is an apocalyptic number.

101020011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101020011210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133943138784).

101020011210 is an abundant number, since it is smaller than the sum of its proper divisors (166866266358).

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

101020011210 is a wasteful number, since it uses less digits than its factorization.

101020011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94580 (or 94577 counting only the distinct ones).

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

Adding to 101020011210 its reverse (12110020101), we get a palindrome (113130031311).

The spelling of 101020011210 in words is "one hundred one billion, twenty million, eleven thousand, two hundred ten".