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1111231302212 = 222347494351991
BaseRepresentation
bin10000001010111010100…
…011000000101001000100
310221020021121202000221202
4100022322203000221010
5121201300203132322
62210254223202032
7143166230135603
oct20127243005104
93836247660852
101111231302212
113992a8111639
1215b445146318
1380a338c9825
143bad8d87a3a
151dd8b9ce292
hex102ba8c0a44

1111231302212 has 48 divisors (see below), whose sum is σ = 2072838684672. Its totient is φ = 520035589920.

The previous prime is 1111231302197. The next prime is 1111231302217. The reversal of 1111231302212 is 2122031321111.

It is not an unprimeable number, because it can be changed into a prime (1111231302217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21347537 + ... + 21399527.

It is an arithmetic number, because the mean of its divisors is an integer number (43184139264).

Almost surely, 21111231302212 is an apocalyptic number.

It is an amenable number.

1111231302212 is a deficient number, since it is larger than the sum of its proper divisors (961607382460).

1111231302212 is a wasteful number, since it uses less digits than its factorization.

1111231302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57008 (or 57006 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1111231302212 its reverse (2122031321111), we get a palindrome (3233262623323).

The spelling of 1111231302212 in words is "one trillion, one hundred eleven billion, two hundred thirty-one million, three hundred two thousand, two hundred twelve".

Divisors: 1 2 4 23 46 47 92 94 188 1081 2162 4324 4943 9886 19772 51991 103982 113689 207964 227378 232321 454756 464642 929284 1195793 2391586 2443577 4783172 4887154 5343383 9774308 10686766 21373532 56202271 112404542 224809084 256991513 513983026 1027966052 5910804799 11821609598 12078601111 23643219196 24157202222 48314404444 277807825553 555615651106 1111231302212