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122021022221011 = 251790161528861
BaseRepresentation
bin11011101111101000111011…
…101011110100001011010011
3121000001002120211122100202201
4123233220323223310023103
5111443143023142033021
61111303403405024031
734462504452466264
oct3357507353641323
9530032524570681
10122021022221011
1135974908a64871
12118285a9555017
1353116c1086174
14221bbc589896b
15e190a7ebe591
hex6efa3baf42d3

122021022221011 has 8 divisors (see below), whose sum is σ = 122522669016048. Its totient is φ = 121519498500000.

The previous prime is 122021022221009. The next prime is 122021022221023. The reversal of 122021022221011 is 110122220120221.

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 122021022221011 - 21 = 122021022221009 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 122021022221011.

It is not an unprimeable number, because it can be changed into a prime (122021022221311) 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 7 ways as a sum of consecutive naturals, for example, 28781280 + ... + 32747581.

It is an arithmetic number, because the mean of its divisors is an integer number (15315333627006).

Almost surely, 2122021022221011 is an apocalyptic number.

122021022221011 is a deficient number, since it is larger than the sum of its proper divisors (501646795037).

122021022221011 is an equidigital number, since it uses as much as digits as its factorization.

122021022221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61537013.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122021022221011 its reverse (110122220120221), we get a palindrome (232143242341232).

The spelling of 122021022221011 in words is "one hundred twenty-two trillion, twenty-one billion, twenty-two million, two hundred twenty-one thousand, eleven".

Divisors: 1 251 7901 1983151 61528861 15443744111 486139530761 122021022221011