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1201020212210 = 257131319802431
BaseRepresentation
bin10001011110100010011…
…000100001001111110010
311020211001011102021000212
4101132202120201033302
5124134142133242320
62315424023144122
7152525254235450
oct21364230411762
94224034367025
101201020212210
11423393665685
121749232a5042
1389342a80a80
14421b5c179d0
15213945609c5
hex117a26213f2

1201020212210 has 32 divisors (see below), whose sum is σ = 2660721702912. Its totient is φ = 380103099840.

The previous prime is 1201020212207. The next prime is 1201020212309. The reversal of 1201020212210 is 122120201021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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, 659900306 + ... + 659902125.

It is an arithmetic number, because the mean of its divisors is an integer number (83147553216).

Almost surely, 21201020212210 is an apocalyptic number.

1201020212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201020212210 is an abundant number, since it is smaller than the sum of its proper divisors (1459701490702).

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

1201020212210 is a wasteful number, since it uses less digits than its factorization.

1201020212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319802458.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201020212210 its reverse (122120201021), we get a palindrome (1323140413231).

The spelling of 1201020212210 in words is "one trillion, two hundred one billion, twenty million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 1319802431 2639604862 6599012155 9238617017 13198024310 17157431603 18477234034 34314863206 46193085085 85787158015 92386170170 120102021221 171574316030 240204042442 600510106105 1201020212210