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1020000222012 = 22385000018501
BaseRepresentation
bin11101101011111001100…
…00000011101100111100
310121111210120100222021110
432311330300003230330
5113202430024101022
62100325344402020
7133456361556132
oct16657460035474
93544716328243
101020000222012
113636415967a2
12145824016310
1375254a20535
1437522789752
151b7ec52800c
hexed7cc03b3c

1020000222012 has 12 divisors (see below), whose sum is σ = 2380000518056. Its totient is φ = 340000074000.

The previous prime is 1020000222011. The next prime is 1020000222019. The reversal of 1020000222012 is 2102220000201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 85000018501 = 1020000222012 / (1 + 0 + 2 + 0 + 0 + 0 + 0 + 2 + 2 + 2 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020000222011) 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, 42500009239 + ... + 42500009262.

Almost surely, 21020000222012 is an apocalyptic number.

1020000222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020000222012 is an abundant number, since it is smaller than the sum of its proper divisors (1360000296044).

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

1020000222012 is a wasteful number, since it uses less digits than its factorization.

1020000222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85000018508 (or 85000018506 counting only the distinct ones).

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

Adding to 1020000222012 its reverse (2102220000201), we get a palindrome (3122220222213).

The spelling of 1020000222012 in words is "one trillion, twenty billion, two hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 85000018501 170000037002 255000055503 340000074004 510000111006 1020000222012