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2011202222021 = 30713734771411
BaseRepresentation
bin11101010001000100111…
…111100111011111000101
321010021021010210200122222
4131101010333213133011
5230422420232101041
64135533351302125
7265206315551336
oct35210477473705
97107233720588
102011202222021
11705a4524a013
1228594b67a945
1311786a343505
146d4b256028d
15374b16b474b
hex1d444fe77c5

2011202222021 has 8 divisors (see below), whose sum is σ = 2019223387104. Its totient is φ = 2003190603120.

The previous prime is 2011202222009. The next prime is 2011202222027. The reversal of 2011202222021 is 1202222021102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011202222021 - 234 = 1994022352837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011202222027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964195 + ... + 2807216.

It is an arithmetic number, because the mean of its divisors is an integer number (252402923388).

Almost surely, 22011202222021 is an apocalyptic number.

It is an amenable number.

2011202222021 is a deficient number, since it is larger than the sum of its proper divisors (8021165083).

2011202222021 is a wasteful number, since it uses less digits than its factorization.

2011202222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773091.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2011202222021 its reverse (1202222021102), we get a palindrome (3213424243123).

The spelling of 2011202222021 in words is "two trillion, eleven billion, two hundred two million, two hundred twenty-two thousand, twenty-one".

Divisors: 1 307 1373 421511 4771411 1464823177 6551147303 2011202222021