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1201212020008 = 2371113243536183
BaseRepresentation
bin10001011110101101110…
…100001101010100101000
311020211112112100002212101
4101132231310031110220
5124140040234120013
62315455034223144
7152533103463040
oct21365564152450
94224475302771
101201212020008
11423481962720
12174977584ab4
138937372a300
14421d34a6720
15213a62ec8dd
hex117add0d528

1201212020008 has 768 divisors, whose sum is σ = 3260851292160. Its totient is φ = 402303283200.

The previous prime is 1201212020003. The next prime is 1201212020033. The reversal of 1201212020008 is 8000202121021.

It is not an unprimeable number, because it can be changed into a prime (1201212020003) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14472433935 + ... + 14472434017.

It is an arithmetic number, because the mean of its divisors is an integer number (4245900120).

Almost surely, 21201212020008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201212020008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630425646080).

1201212020008 is an abundant number, since it is smaller than the sum of its proper divisors (2059639272152).

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

1201212020008 is a wasteful number, since it uses less digits than its factorization.

1201212020008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1201212020008 its reverse (8000202121021), we get a palindrome (9201414141029).

The spelling of 1201212020008 in words is "one trillion, two hundred one billion, two hundred twelve million, twenty thousand, eight".