Search a number
-
+
1222010100101 = 7174572871443
BaseRepresentation
bin10001110010000101011…
…110100101100110000101
311022211012222121001012002
4101302011132211212011
5130010134041200401
62333214513235045
7154200356316050
oct21620536454605
94284188531162
101222010100101
1143128493106a
12178a00862a85
138b309564c8b
1443207777a97
1521bc2161a6b
hex11c857a5985

1222010100101 has 4 divisors (see below), whose sum is σ = 1396582971552. Its totient is φ = 1047437228652.

The previous prime is 1222010100097. The next prime is 1222010100109. The reversal of 1222010100101 is 1010010102221.

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.

It is a cyclic number.

It is not a de Polignac number, because 1222010100101 - 22 = 1222010100097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010100109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87286435715 + ... + 87286435728.

It is an arithmetic number, because the mean of its divisors is an integer number (349145742888).

Almost surely, 21222010100101 is an apocalyptic number.

It is an amenable number.

1222010100101 is a deficient number, since it is larger than the sum of its proper divisors (174572871451).

1222010100101 is an equidigital number, since it uses as much as digits as its factorization.

1222010100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174572871450.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1222010100101 its reverse (1010010102221), we get a palindrome (2232020202322).

The spelling of 1222010100101 in words is "one trillion, two hundred twenty-two billion, ten million, one hundred thousand, one hundred one".

Divisors: 1 7 174572871443 1222010100101