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2201111210020 = 225313550179371
BaseRepresentation
bin100000000001111100011…
…100111010100000100100
321210102110020001212001011
4200001330130322200210
5242030333432210040
64403102044112004
7315011405404312
oct40017434724044
97712406055034
102201111210020
11779538993578
122b670b835604
1312c743b5a768
147876a38b0b2
153c3c8c9e3ea
hex2007c73a824

2201111210020 has 24 divisors (see below), whose sum is σ = 4771441075968. Its totient is φ = 852043048800.

The previous prime is 2201111210003. The next prime is 2201111210021. The reversal of 2201111210020 is 200121111022.

It is not an unprimeable number, because it can be changed into a prime (2201111210021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775089066 + ... + 1775090305.

It is an arithmetic number, because the mean of its divisors is an integer number (198810044832).

Almost surely, 22201111210020 is an apocalyptic number.

2201111210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201111210020 is an abundant number, since it is smaller than the sum of its proper divisors (2570329865948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2201111210020 is a wasteful number, since it uses less digits than its factorization.

2201111210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3550179411 (or 3550179409 counting only the distinct ones).

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

Adding to 2201111210020 its reverse (200121111022), we get a palindrome (2401232321042).

The spelling of 2201111210020 in words is "two trillion, two hundred one billion, one hundred eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 3550179371 7100358742 14200717484 17750896855 35501793710 71003587420 110055560501 220111121002 440222242004 550277802505 1100555605010 2201111210020