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1010122210121 = 2934831800349
BaseRepresentation
bin11101011001011111111…
…10011011101101001001
310120120022011010222101012
432230233332123231021
5113022212241210441
62052013240333305
7132656525055503
oct16545776335511
93516264128335
101010122210121
1135a432721202
12143927a74235
137433c3a4b9b
1436c668dcd73
151b4202149eb
hexeb2ff9bb49

1010122210121 has 4 divisors (see below), whose sum is σ = 1044954010500. Its totient is φ = 975290409744.

The previous prime is 1010122210043. The next prime is 1010122210159. The reversal of 1010122210121 is 1210122210101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 788126695225 + 221995514896 = 887765^2 + 471164^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010122210121 - 230 = 1009048468297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010122210096 and 1010122210105.

It is not an unprimeable number, because it can be changed into a prime (1010122210171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17415900146 + ... + 17415900203.

It is an arithmetic number, because the mean of its divisors is an integer number (261238502625).

Almost surely, 21010122210121 is an apocalyptic number.

It is an amenable number.

1010122210121 is a deficient number, since it is larger than the sum of its proper divisors (34831800379).

1010122210121 is an equidigital number, since it uses as much as digits as its factorization.

1010122210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34831800378.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010122210121 its reverse (1210122210101), we get a palindrome (2220244420222).

The spelling of 1010122210121 in words is "one trillion, ten billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty-one".

Divisors: 1 29 34831800349 1010122210121