101200000001022 has 48 divisors (see below), whose sum is σ = 244879012363440. Its totient is φ = 31138461536832.

The previous prime is 101200000001011. The next prime is 101200000001029. The reversal of 101200000001022 is 220100000002101.

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 = 101200000000995 and 101200000001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200000001029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8008857247 + ... + 8008869882.

It is an arithmetic number, because the mean of its divisors is an integer number (5101646090905).

Almost surely, 2^{101200000001022} is an apocalyptic number.

101200000001022 is an abundant number, since it is smaller than the sum of its proper divisors (143679012362418).

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

101200000001022 is a wasteful number, since it uses less digits than its factorization.

101200000001022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16017727159 (or 16017727147 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 101200000001022 its reverse (220100000002101), we get a palindrome (321300000003123).

The spelling of 101200000001022 in words is "one hundred one trillion, two hundred billion, one thousand, twenty-two".