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122011220021101 = 138318821576171
BaseRepresentation
bin11011101111011111110011…
…011011011000111101101101
3121000000011021201002000100121
4123233133303123120331231
5111443012434311133401
61111255103005524541
734462006526250055
oct3357376333307555
9530004251060317
10122011220021101
113597073896aa04
1211826712873751
1353107bb362888
14221b535b04565
15e18bd2683ca1
hex6ef7f36d8f6d

122011220021101 has 4 divisors (see below), whose sum is σ = 122020041611104. Its totient is φ = 122002398431100.

The previous prime is 122011220021081. The next prime is 122011220021111. The reversal of 122011220021101 is 101120022110221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122011220021101 - 25 = 122011220021069 is a prime.

It is a super-2 number, since 2×1220112200211012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011220021111) 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, 4410774255 + ... + 4410801916.

It is an arithmetic number, because the mean of its divisors is an integer number (30505010402776).

Almost surely, 2122011220021101 is an apocalyptic number.

It is an amenable number.

122011220021101 is a deficient number, since it is larger than the sum of its proper divisors (8821590003).

122011220021101 is an equidigital number, since it uses as much as digits as its factorization.

122011220021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8821590002.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122011220021101 its reverse (101120022110221), we get a palindrome (223131242131322).

The spelling of 122011220021101 in words is "one hundred twenty-two trillion, eleven billion, two hundred twenty million, twenty-one thousand, one hundred one".

Divisors: 1 13831 8821576171 122011220021101