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120221102101 = 174907687343
BaseRepresentation
bin110111111110110111…
…1000111000000010101
3102111022102012202120011
41233331233013000111
53432203100231401
6131121231240221
711454122335642
oct1577557070025
9374272182504
10120221102101
1146a92750431
121b371979071
13b44bc4c609
145b6685cdc9
1531d95cc451
hex1bfdbc7015

120221102101 has 4 divisors (see below), whose sum is σ = 120221964352. Its totient is φ = 120220239852.

The previous prime is 120221102039. The next prime is 120221102117. The reversal of 120221102101 is 101201122021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101201122021 = 187303540307.

It is a cyclic number.

It is not a de Polignac number, because 120221102101 - 215 = 120221069333 is a prime.

It is a super-2 number, since 2×1202211021012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221142101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168765 + ... + 518578.

It is an arithmetic number, because the mean of its divisors is an integer number (30055491088).

Almost surely, 2120221102101 is an apocalyptic number.

It is an amenable number.

120221102101 is a deficient number, since it is larger than the sum of its proper divisors (862251).

120221102101 is an equidigital number, since it uses as much as digits as its factorization.

120221102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862250.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120221102101 its reverse (101201122021), we get a palindrome (221422224122).

The spelling of 120221102101 in words is "one hundred twenty billion, two hundred twenty-one million, one hundred two thousand, one hundred one".

Divisors: 1 174907 687343 120221102101