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101302212221 = 725157656353
BaseRepresentation
bin101111001011000010…
…1010001011001111101
3100200110220222120120222
41132112011101121331
53124431331242341
6114312041551125
710214235411410
oct1362605213175
9320426876528
10101302212221
1139a64504451
1217771aa54a5
139725540612
144c8dd99b77
15297d71544b
hex179615167d

101302212221 has 8 divisors (see below), whose sum is σ = 116235209664. Its totient is φ = 86484528000.

The previous prime is 101302212131. The next prime is 101302212227. The reversal of 101302212221 is 122212203101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101302212221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101302212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101302212227) 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, 28826420 + ... + 28829933.

It is an arithmetic number, because the mean of its divisors is an integer number (14529401208).

Almost surely, 2101302212221 is an apocalyptic number.

It is an amenable number.

101302212221 is a deficient number, since it is larger than the sum of its proper divisors (14932997443).

101302212221 is an equidigital number, since it uses as much as digits as its factorization.

101302212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57656611.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 101302212221 its reverse (122212203101), we get a palindrome (223514415322).

The spelling of 101302212221 in words is "one hundred one billion, three hundred two million, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 7 251 1757 57656353 403594471 14471744603 101302212221