Search a number
-
+
1222022112101 = 71721148668689
BaseRepresentation
bin10001110010000110001…
…100011010001101100101
311022211020211012022112222
4101302012030122031211
5130010200130041401
62333220022522125
7154200563365340
oct21620614321545
94284224168488
101222022112101
1143129069593a
12178a04896345
138b30bbac57b
14432091c3457
1521bc3235c1b
hex11c8631a365

1222022112101 has 16 divisors (see below), whose sum is σ = 1485757768320. Its totient is φ = 981160750080.

The previous prime is 1222022112049. The next prime is 1222022112191. The reversal of 1222022112101 is 1012112202221.

It is not a de Polignac number, because 1222022112101 - 210 = 1222022111077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1222022112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222022112191) 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, 24309236 + ... + 24359453.

It is an arithmetic number, because the mean of its divisors is an integer number (92859860520).

Almost surely, 21222022112101 is an apocalyptic number.

It is an amenable number.

1222022112101 is a deficient number, since it is larger than the sum of its proper divisors (263735656219).

1222022112101 is a wasteful number, since it uses less digits than its factorization.

1222022112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48668924.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222022112101 its reverse (1012112202221), we get a palindrome (2234134314322).

The spelling of 1222022112101 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred twelve thousand, one hundred one".

Divisors: 1 7 17 119 211 1477 3587 25109 48668689 340680823 827367713 5791573991 10269093379 71883653653 174574587443 1222022112101