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122010102210221 = 432837444237447
BaseRepresentation
bin11011101111011110110000…
…110011010001111010101101
3121000000001101210201100002122
4123233132300303101322231
5111443003142131211341
61111254400035202325
734461640034103161
oct3357366063217255
9530001353640078
10122010102210221
11359702149a0065
12118264604463a5
1353106708b7014
14221b46b48aca1
15e18b6948094b
hex6ef7b0cd1ead

122010102210221 has 4 divisors (see below), whose sum is σ = 124847546447712. Its totient is φ = 119172657972732.

The previous prime is 122010102210211. The next prime is 122010102210239. The reversal of 122010102210221 is 122012201010221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122010102210221 - 222 = 122010098015917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122010102210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010102210211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418722118681 + ... + 1418722118766.

It is an arithmetic number, because the mean of its divisors is an integer number (31211886611928).

Almost surely, 2122010102210221 is an apocalyptic number.

It is an amenable number.

122010102210221 is a deficient number, since it is larger than the sum of its proper divisors (2837444237491).

122010102210221 is an equidigital number, since it uses as much as digits as its factorization.

122010102210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837444237490.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122010102210221 its reverse (122012201010221), we get a palindrome (244022303220442).

The spelling of 122010102210221 in words is "one hundred twenty-two trillion, ten billion, one hundred two million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 43 2837444237447 122010102210221