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122010220002001 = 803662115181781
BaseRepresentation
bin11011101111011110110111…
…110100100111101011010001
3121000000001201000100210001011
4123233132313310213223101
5111443003412310031001
61111254415444010521
734461642664236352
oct3357366764475321
9530001630323034
10122010220002001
1135970275433841
1211826493990a41
13531068c119ab6
14221b47cd8dd29
15e18b7499bd51
hex6ef7b7d27ad1

122010220002001 has 4 divisors (see below), whose sum is σ = 122010243220404. Its totient is φ = 122010196783600.

The previous prime is 122010220001941. The next prime is 122010220002029. The reversal of 122010220002001 is 100200022010221.

It is a happy number.

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 9155610878976 + 112854609123025 = 3025824^2 + 10623305^2 .

It is a cyclic number.

It is not a de Polignac number, because 122010220002001 - 29 = 122010220001489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122010220002301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445731 + ... + 15627511.

It is an arithmetic number, because the mean of its divisors is an integer number (30502560805101).

Almost surely, 2122010220002001 is an apocalyptic number.

It is an amenable number.

122010220002001 is a deficient number, since it is larger than the sum of its proper divisors (23218403).

122010220002001 is an equidigital number, since it uses as much as digits as its factorization.

122010220002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23218402.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122010220002001 its reverse (100200022010221), we get a palindrome (222210242012222).

The spelling of 122010220002001 in words is "one hundred twenty-two trillion, ten billion, two hundred twenty million, two thousand, one".

Divisors: 1 8036621 15181781 122010220002001