101021221110210 has 32 divisors (see below), whose sum is σ = 244596514129920. Its totient is φ = 26700594133248.

The previous prime is 101021221110203. The next prime is 101021221110217. The reversal of 101021221110210 is 12011122120101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101021221110203) and next prime (101021221110217).

It is a super-2 number, since 2×101021221110210² (a number of 29 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 101021221110210.

It is not an unprimeable number, because it can be changed into a prime (101021221110217) 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, 14899881730 + ... + 14899888509.

It is an arithmetic number, because the mean of its divisors is an integer number (7643641066560).

Almost surely, 2^{101021221110210} is an apocalyptic number.

101021221110210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101021221110210 is an abundant number, since it is smaller than the sum of its proper divisors (143575293019710).

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

101021221110210 is a wasteful number, since it uses less digits than its factorization.

101021221110210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29799770362.

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

Adding to 101021221110210 its reverse (12011122120101), we get a palindrome (113032343230311).

The spelling of 101021221110210 in words is "one hundred one trillion, twenty-one billion, two hundred twenty-one million, one hundred ten thousand, two hundred ten".