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1210222000020 = 2235111833669697
BaseRepresentation
bin10001100111000110110…
…110100011011110010100
311021200210110012111212210
4101213012312203132110
5124312013313000040
62323545053313420
7153302300161245
oct21470666433624
94250713174783
101210222000020
1142728584aaa0
12176670a95870
138a17b293027
1442809d58ccc
15217322eb480
hex119c6da3794

1210222000020 has 48 divisors (see below), whose sum is σ = 3696678111168. Its totient is φ = 293387151360.

The previous prime is 1210222000019. The next prime is 1210222000063. The reversal of 1210222000020 is 200002220121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916834189 + ... + 916835508.

It is an arithmetic number, because the mean of its divisors is an integer number (77014127316).

Almost surely, 21210222000020 is an apocalyptic number.

1210222000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210222000020 is an abundant number, since it is smaller than the sum of its proper divisors (2486456111148).

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

1210222000020 is a wasteful number, since it uses less digits than its factorization.

1210222000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833669720 (or 1833669718 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1210222000020 its reverse (200002220121), we get a palindrome (1410224220141).

The spelling of 1210222000020 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 1833669697 3667339394 5501009091 7334678788 9168348485 11002018182 18336696970 20170366667 22004036364 27505045455 36673393940 40340733334 55010090910 60511100001 80681466668 100851833335 110020181820 121022200002 201703666670 242044400004 302555500005 403407333340 605111000010 1210222000020