101212001010 has 128 divisors (see below), whose sum is σ = 277657943040. Its totient is φ = 26222349312.

The previous prime is 101212001003. The next prime is 101212001063. The reversal of 101212001010 is 10100212101.

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 = 101212000983 and 101212001001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1709422 + ... + 1767638.

It is an arithmetic number, because the mean of its divisors is an integer number (2169202680).

Almost surely, 2^101212001010 is an apocalyptic number.

101212001010 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 101212001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138828971520).

101212001010 is an abundant number, since it is smaller than the sum of its proper divisors (176445942030).

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

101212001010 is a wasteful number, since it uses less digits than its factorization.

101212001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58417 (or 58411 counting only the distinct ones).

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

Adding to 101212001010 its reverse (10100212101), we get a palindrome (111312213111).

The spelling of 101212001010 in words is "one hundred one billion, two hundred twelve million, one thousand, ten".