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12525031332212 = 227501769891491
BaseRepresentation
bin1011011001000011011000…
…0010110001100101110100
31122100101021222011020120012
42312100312002301211310
53120202231010112322
642345530413355352
72431621644500660
oct266206602614564
948311258136505
1012525031332212
113a99921729713
1214a3527798b58
136cb14a6c4329
143143013c38a0
1516ac11364ae2
hexb64360b1974

12525031332212 has 24 divisors (see below), whose sum is σ = 25050140687040. Its totient is φ = 5367853851840.

The previous prime is 12525031332197. The next prime is 12525031332217. The reversal of 12525031332212 is 21223313052521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525031332217) 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, 13603787 + ... + 14495277.

It is an arithmetic number, because the mean of its divisors is an integer number (1043755861960).

Almost surely, 212525031332212 is an apocalyptic number.

It is an amenable number.

12525031332212 is an abundant number, since it is smaller than the sum of its proper divisors (12525109354828).

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

12525031332212 is a wasteful number, since it uses less digits than its factorization.

12525031332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393271 (or 1393269 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 12525031332212 its reverse (21223313052521), we get a palindrome (33748344384733).

The spelling of 12525031332212 in words is "twelve trillion, five hundred twenty-five billion, thirty-one million, three hundred thirty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 501769 891491 1003538 1782982 2007076 3512383 3565964 6240437 7024766 12480874 14049532 24961748 447322547579 894645095158 1789290190316 3131257833053 6262515666106 12525031332212