101210121221010 has 32 divisors (see below), whose sum is σ = 243100656654912. Its totient is φ = 26967547245120.

The previous prime is 101210121220997. The next prime is 101210121221017. The reversal of 101210121221010 is 10122121012101.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (101210121221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1363613136 + ... + 1363687355.

It is an arithmetic number, because the mean of its divisors is an integer number (7596895520466).

Almost surely, 2^{101210121221010} is an apocalyptic number.

101210121221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101210121221010 is an abundant number, since it is smaller than the sum of its proper divisors (141890535433902).

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

101210121221010 is a wasteful number, since it uses less digits than its factorization.

101210121221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727301738.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101210121221010 its reverse (10122121012101), we get a palindrome (111332242233111).

The spelling of 101210121221010 in words is "one hundred one trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, ten".