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122101022220101 = 1372293891914137
BaseRepresentation
bin11011110000110011011100…
…000011100101111101000101
3121000022202002011202101111222
4123300303130003211331011
5112001000343142020401
61111404234002410125
734501336104325241
oct3360633403457505
9530282064671458
10122101022220101
11359a58309701a1
121183bbb5360945
1353191001ba732
142221a14633421
15e1b1db48cc1b
hex6f0cdc0e5f45

122101022220101 has 8 divisors (see below), whose sum is σ = 123529354740120. Its totient is φ = 120680473529088.

The previous prime is 122101022220071. The next prime is 122101022220103. The reversal of 122101022220101 is 101022220101221.

It can be written as a sum of positive squares in 4 ways, for example, as 19154146137025 + 102946876083076 = 4376545^2 + 10146274^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 122101022220101 - 214 = 122101022203717 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 122101022220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101022220103) 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, 1945925696 + ... + 1945988441.

It is an arithmetic number, because the mean of its divisors is an integer number (15441169342515).

Almost surely, 2122101022220101 is an apocalyptic number.

It is an amenable number.

122101022220101 is a deficient number, since it is larger than the sum of its proper divisors (1428332520019).

122101022220101 is a wasteful number, since it uses less digits than its factorization.

122101022220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891914503.

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

Adding to 122101022220101 its reverse (101022220101221), we get a palindrome (223123242321322).

The spelling of 122101022220101 in words is "one hundred twenty-two trillion, one hundred one billion, twenty-two million, two hundred twenty thousand, one hundred one".

Divisors: 1 137 229 31373 3891914137 533192236769 891248337373 122101022220101