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122010220211 = 1111091838201
BaseRepresentation
bin111000110100001100…
…0000011011010110011
3102122221002202101012212
41301220120003122303
53444334104021321
6132014542242335
711546345521505
oct1615030033263
9378832671185
10122010220211
1147820652340
121b790b863ab
13b6757cc599
145c96301d75
1532916d655b
hex1c686036b3

122010220211 has 4 divisors (see below), whose sum is σ = 133102058424. Its totient is φ = 110918382000.

The previous prime is 122010220201. The next prime is 122010220229. The reversal of 122010220211 is 112022010221.

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

It is a cyclic number.

It is not a de Polignac number, because 122010220211 - 210 = 122010219187 is a prime.

It is a super-3 number, since 3×1220102202113 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122010220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545919090 + ... + 5545919111.

It is an arithmetic number, because the mean of its divisors is an integer number (33275514606).

Almost surely, 2122010220211 is an apocalyptic number.

122010220211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122010220211 is a deficient number, since it is larger than the sum of its proper divisors (11091838213).

122010220211 is a wasteful number, since it uses less digits than its factorization.

122010220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091838212.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122010220211 its reverse (112022010221), we get a palindrome (234032230432).

The spelling of 122010220211 in words is "one hundred twenty-two billion, ten million, two hundred twenty thousand, two hundred eleven".

Divisors: 1 11 11091838201 122010220211