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122011020112020 = 2235132089656911399
BaseRepresentation
bin11011101111011111100111…
…100000110011000010010100
3121000000010202202220120122120
4123233133213200303002110
5111443012032122041040
61111255031105055540
734462001551121544
oct3357374740630224
9530003682816576
10122011020112020
113597064603a296
12118266779275b0
135310788b0aa90
14221b517347324
15e18bbed467d0
hex6ef7e7833094

122011020112020 has 192 divisors, whose sum is σ = 368174600640000. Its totient is φ = 30011902009344.

The previous prime is 122011020111983. The next prime is 122011020112021. The reversal of 122011020112020 is 20211020110221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011020112021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10703654281 + ... + 10703665679.

It is an arithmetic number, because the mean of its divisors is an integer number (1917576045000).

Almost surely, 2122011020112020 is an apocalyptic number.

122011020112020 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 122011020112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184087300320000).

122011020112020 is an abundant number, since it is smaller than the sum of its proper divisors (246163580527980).

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

122011020112020 is a wasteful number, since it uses less digits than its factorization.

122011020112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20082 (or 20080 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122011020112020 its reverse (20211020110221), we get a palindrome (142222040222241).

The spelling of 122011020112020 in words is "one hundred twenty-two trillion, eleven billion, twenty million, one hundred twelve thousand, twenty".