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12220020202 = 2131965937537
BaseRepresentation
bin10110110000101111…
…01011010111101010
31011112122010100022211
423120113223113222
5200011311121302
65340325235334
7611552313025
oct133027532752
934478110284
1012220020202
115200979055
122450562b4a
1311c990b4b0
1483cd321bc
154b7c31ad7
hex2d85eb5ea

12220020202 has 32 divisors (see below), whose sum is σ = 20811067200. Its totient is φ = 5334916608.

The previous prime is 12220020191. The next prime is 12220020217. The reversal of 12220020202 is 20202002221.

It is a Harshad number since it is a multiple of its sum of digits (13).

12220020202 is a modest number, since divided by 20202 gives 12220 as remainder.

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, 306778 + ... + 344314.

It is an arithmetic number, because the mean of its divisors is an integer number (650345850).

Almost surely, 212220020202 is an apocalyptic number.

12220020202 is a deficient number, since it is larger than the sum of its proper divisors (8591046998).

12220020202 is a wasteful number, since it uses less digits than its factorization.

12220020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38230.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12220020202 its reverse (20202002221), we get a palindrome (32422022423).

The spelling of 12220020202 in words is "twelve billion, two hundred twenty million, twenty thousand, two hundred two".

Divisors: 1 2 13 19 26 38 247 494 659 1318 8567 12521 17134 25042 37537 75074 162773 325546 487981 713203 975962 1426406 9271639 18543278 24736883 49473766 321579479 470000777 643158958 940001554 6110010101 12220020202