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1022010122101 = 6521156725981
BaseRepresentation
bin11101101111101001000…
…11001101111101110101
310121200222122100110212111
432313310203031331311
5113221034042401401
62101301023451021
7133560235463143
oct16676443157565
93550878313774
101022010122101
11364483085451
121460a5156a71
13754b5252b27
14376736a0593
151b8b8be3e51
hexedf48cdf75

1022010122101 has 4 divisors (see below), whose sum is σ = 1022166854604. Its totient is φ = 1021853389600.

The previous prime is 1022010122083. The next prime is 1022010122171. The reversal of 1022010122101 is 1012210102201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 686362540900 + 335647581201 = 828470^2 + 579351^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022010122101 - 29 = 1022010121589 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 (1022010122171) 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, 78356470 + ... + 78369511.

It is an arithmetic number, because the mean of its divisors is an integer number (255541713651).

Almost surely, 21022010122101 is an apocalyptic number.

It is an amenable number.

1022010122101 is a deficient number, since it is larger than the sum of its proper divisors (156732503).

1022010122101 is an equidigital number, since it uses as much as digits as its factorization.

1022010122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156732502.

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

Adding to 1022010122101 its reverse (1012210102201), we get a palindrome (2034220224302).

The spelling of 1022010122101 in words is "one trillion, twenty-two billion, ten million, one hundred twenty-two thousand, one hundred one".

Divisors: 1 6521 156725981 1022010122101