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122022210021 = 3283238960161
BaseRepresentation
bin111000110100100010…
…1110010100111100101
3102122221221022112010220
41301221011302213211
53444400141210041
6132020051234553
711546552446305
oct1615105624745
9378857275126
10122022210021
11478273a1478
121b794ba8a59
13b678139a4a
145c97b43605
1532927a3d66
hex1c691729e5

122022210021 has 16 divisors (see below), whose sum is σ = 163342236480. Its totient is φ = 81025413120.

The previous prime is 122022210019. The next prime is 122022210031. The reversal of 122022210021 is 120012220221.

It is not a de Polignac number, because 122022210021 - 21 = 122022210019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122022210031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1998181 + ... + 2058341.

It is an arithmetic number, because the mean of its divisors is an integer number (10208889780).

Almost surely, 2122022210021 is an apocalyptic number.

It is an amenable number.

122022210021 is a deficient number, since it is larger than the sum of its proper divisors (41320026459).

122022210021 is a wasteful number, since it uses less digits than its factorization.

122022210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62836.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122022210021 its reverse (120012220221), we get a palindrome (242034430242).

The spelling of 122022210021 in words is "one hundred twenty-two billion, twenty-two million, two hundred ten thousand, twenty-one".

Divisors: 1 3 283 849 2389 7167 60161 180483 676087 2028261 17025563 51076689 143724629 431173887 40674070007 122022210021