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1222010202021 = 3773379387397
BaseRepresentation
bin10001110010000101011…
…110111110011110100101
311022211012222210012222220
4101302011132332132211
5130010134102431041
62333214515342553
7154200360222150
oct21620536763645
94284188705886
101222010202021
114312849a06a4
12178a008b1a59
138b30959c49b
14432077a2c97
1521bc2181d66
hex11c857be7a5

1222010202021 has 16 divisors (see below), whose sum is σ = 1864651204224. Its totient is φ = 697338886464.

The previous prime is 1222010201987. The next prime is 1222010202031. The reversal of 1222010202021 is 1202020102221.

It is not a de Polignac number, because 1222010202021 - 214 = 1222010185637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222010202031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39678306 + ... + 39709091.

It is an arithmetic number, because the mean of its divisors is an integer number (116540700264).

Almost surely, 21222010202021 is an apocalyptic number.

It is an amenable number.

1222010202021 is a deficient number, since it is larger than the sum of its proper divisors (642641002203).

1222010202021 is an equidigital number, since it uses as much as digits as its factorization.

1222010202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79388140.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1222010202021 its reverse (1202020102221), we get a palindrome (2424030304242).

The spelling of 1222010202021 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred two thousand, twenty-one".

Divisors: 1 3 7 21 733 2199 5131 15393 79387397 238162191 555711779 1667135337 58190962001 174572886003 407336734007 1222010202021