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1022201312213 = 1241838231411
BaseRepresentation
bin11101101111111111111…
…00100011001111010101
310121201110222002221101202
432313333330203033111
5113221432013442323
62101332013402245
7133565046535544
oct16677774431725
93551428087352
101022201312213
11364570aa0404
12146139199385
1375515a44183
1437690c2c15b
151b8ca8acd28
hexedfff233d5

1022201312213 has 4 divisors (see below), whose sum is σ = 1022209667808. Its totient is φ = 1022192956620.

The previous prime is 1022201312179. The next prime is 1022201312287. The reversal of 1022201312213 is 3122131022201.

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 a de Polignac number, because none of the positive numbers 2k-1022201312213 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 (1022201212213) 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, 3991523 + ... + 4239888.

It is an arithmetic number, because the mean of its divisors is an integer number (255552416952).

Almost surely, 21022201312213 is an apocalyptic number.

It is an amenable number.

1022201312213 is a deficient number, since it is larger than the sum of its proper divisors (8355595).

1022201312213 is an equidigital number, since it uses as much as digits as its factorization.

1022201312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8355594.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1022201312213 its reverse (3122131022201), we get a palindrome (4144332334414).

The spelling of 1022201312213 in words is "one trillion, twenty-two billion, two hundred one million, three hundred twelve thousand, two hundred thirteen".

Divisors: 1 124183 8231411 1022201312213