Search a number
-
+
1202021211213 = 33431154366943
BaseRepresentation
bin10001011111011110000…
…011000001110001001101
311020220121220222021112000
4101133132003001301031
5124143214412224323
62320111222102513
7152562130500054
oct21373603016115
94226556867460
101202021211213
11423857700a89
12174b6257aa39
138947227a884
144226cb4539b
152140238ce43
hex117de0c1c4d

1202021211213 has 32 divisors (see below), whose sum is σ = 1786087342080. Its totient is φ = 798958125360.

The previous prime is 1202021211179. The next prime is 1202021211229. The reversal of 1202021211213 is 3121121202021.

It is not a de Polignac number, because 1202021211213 - 225 = 1201987656781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021211253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17922420 + ... + 17989362.

It is an arithmetic number, because the mean of its divisors is an integer number (55815229440).

Almost surely, 21202021211213 is an apocalyptic number.

It is an amenable number.

1202021211213 is a deficient number, since it is larger than the sum of its proper divisors (584066130867).

1202021211213 is a wasteful number, since it uses less digits than its factorization.

1202021211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68926 (or 68920 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1202021211213 its reverse (3121121202021), we get a palindrome (4323142413234).

The spelling of 1202021211213 in words is "one trillion, two hundred two billion, twenty-one million, two hundred eleven thousand, two hundred thirteen".

Divisors: 1 3 9 27 431 1293 1543 3879 4629 11637 13887 41661 66943 200829 602487 665033 1807461 1995099 5985297 17955891 28852433 86557299 103293049 259671897 309879147 779015691 929637441 2788912323 44519304119 133557912357 400673737071 1202021211213