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1111210220201 = 7012315846587
BaseRepresentation
bin10000001010111001010…
…010100101101010101001
310221020020011001221212112
4100022321102211222221
5121201224304021301
62210252151252105
7143165553012164
oct20127122455251
93836204057775
101111210220201
11399297222394
1215b43a07a035
1380a2c427a73
143bad625aadb
151dd89c179bb
hex102b94a5aa9

1111210220201 has 4 divisors (see below), whose sum is σ = 1111226136912. Its totient is φ = 1111194303492.

The previous prime is 1111210220167. The next prime is 1111210220213. The reversal of 1111210220201 is 1020220121111.

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-1111210220201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111210220291) 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, 7853171 + ... + 7993416.

It is an arithmetic number, because the mean of its divisors is an integer number (277806534228).

Almost surely, 21111210220201 is an apocalyptic number.

It is an amenable number.

1111210220201 is a deficient number, since it is larger than the sum of its proper divisors (15916711).

1111210220201 is an equidigital number, since it uses as much as digits as its factorization.

1111210220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15916710.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111210220201 its reverse (1020220121111), we get a palindrome (2131430341312).

The spelling of 1111210220201 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty thousand, two hundred one".

Divisors: 1 70123 15846587 1111210220201