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1002121101212 = 2271121672917681
BaseRepresentation
bin11101001010100110001…
…00100111111110011100
310112210122112122112100012
432211103010213332130
5112404321000214322
62044211301022352
7132254331546410
oct16452304477634
93483575575305
101002121101212
11356aa7266700
121422743b49b8
137366586410a
1436708026d40
151b102a9aae2
hexe953127f9c

1002121101212 has 72 divisors (see below), whose sum is σ = 2203266317280. Its totient is φ = 390391372800.

The previous prime is 1002121101199. The next prime is 1002121101221. The reversal of 1002121101212 is 2121011212001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56669012 + ... + 56686692.

Almost surely, 21002121101212 is an apocalyptic number.

It is an amenable number.

1002121101212 is an abundant number, since it is smaller than the sum of its proper divisors (1201145216068).

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

1002121101212 is a wasteful number, since it uses less digits than its factorization.

1002121101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34443 (or 34430 counting only the distinct ones).

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

Adding to 1002121101212 its reverse (2121011212001), we get a palindrome (3123132313213).

The spelling of 1002121101212 in words is "one trillion, two billion, one hundred twenty-one million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 121 154 242 308 484 847 1694 3388 16729 17681 33458 35362 66916 70724 117103 123767 184019 194491 234206 247534 368038 388982 468412 495068 736076 777964 1288133 1361437 2024209 2139401 2576266 2722874 4048418 4278802 5152532 5445748 8096836 8557604 14169463 14975807 28338926 29951614 56677852 59903228 295785449 591570898 1183141796 2070498143 3253639939 4140996286 6507279878 8281992572 13014559756 22775479573 35790039329 45550959146 71580078658 91101918292 143160157316 250530275303 501060550606 1002121101212