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122120230221000 = 233253112237961717
BaseRepresentation
bin11011110001000101010100…
…111100010011010011001000
3121000101120122210222221020200
4123301011110330103103020
5112001304212414033000
61111421132000452200
734502616101540664
oct3361052474232310
9530346583887220
10122120230221000
1135a02998323600
121184387601a060
13531ab7178413b
1422229176738a4
15e1b962912500
hex6f1154f134c8

122120230221000 has 1152 divisors, whose sum is σ = 479428583961600. Its totient is φ = 27958829184000.

The previous prime is 122120230220971. The next prime is 122120230221013. The reversal of 122120230221000 is 122032021221.

122120230221000 is a `hidden beast` number, since 1 + 2 + 212 + 0 + 230 + 221 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1978682142 + ... + 1978743858.

It is an arithmetic number, because the mean of its divisors is an integer number (416170645800).

Almost surely, 2122120230221000 is an apocalyptic number.

122120230221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122120230221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239714291980800).

122120230221000 is an abundant number, since it is smaller than the sum of its proper divisors (357308353740600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122120230221000 is a wasteful number, since it uses less digits than its factorization.

122120230221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61868 (or 61840 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 122120230221000 its reverse (122032021221), we get a palindrome (122242262242221).

The spelling of 122120230221000 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred thirty million, two hundred twenty-one thousand".