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12012020102 = 289151446909
BaseRepresentation
bin10110010111111100…
…01110000110000110
31011000010201211211102
423023332032012012
5144100034120402
65303535140102
7603445325525
oct131376160606
934003654742
1012012020102
115104521545
1223b2974632
1311957b2a04
1481d46a4bc
154a4847102
hex2cbf8e186

12012020102 has 16 divisors (see below), whose sum is σ = 18341186400. Its totient is φ = 5899185600.

The previous prime is 12012020063. The next prime is 12012020107. The reversal of 12012020102 is 20102021021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012020107) 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, 196577 + ... + 250332.

It is an arithmetic number, because the mean of its divisors is an integer number (1146324150).

Almost surely, 212012020102 is an apocalyptic number.

12012020102 is a deficient number, since it is larger than the sum of its proper divisors (6329166298).

12012020102 is a wasteful number, since it uses less digits than its factorization.

12012020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447151.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12012020102 its reverse (20102021021), we get a palindrome (32114041123).

The spelling of 12012020102 in words is "twelve billion, twelve million, twenty thousand, one hundred two".

Divisors: 1 2 89 151 178 302 13439 26878 446909 893818 39774901 67483259 79549802 134966518 6006010051 12012020102