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1022110221 = 31134079091
BaseRepresentation
bin111100111011000…
…010101000001101
32122020021120122010
4330323002220031
54043130011341
6245231211433
734220536116
oct7473025015
92566246563
101022110221
11484a555a0
12246376b79
131339abc62
1499a6520d
155eaec716
hex3cec2a0d

1022110221 has 16 divisors (see below), whose sum is σ = 1487305728. Its totient is φ = 619210800.

The previous prime is 1022110213. The next prime is 1022110241. The reversal of 1022110221 is 1220112201.

1022110221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022110221 - 23 = 1022110213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022110197 and 1022110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022110211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107886 + ... + 116976.

It is an arithmetic number, because the mean of its divisors is an integer number (92956608).

Almost surely, 21022110221 is an apocalyptic number.

1022110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022110221 is a deficient number, since it is larger than the sum of its proper divisors (465195507).

1022110221 is a wasteful number, since it uses less digits than its factorization.

1022110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1022110221 is about 31970.4585672461. The cubic root of 1022110221 is about 1007.3164132154.

Adding to 1022110221 its reverse (1220112201), we get a palindrome (2242222422).

The spelling of 1022110221 in words is "one billion, twenty-two million, one hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 11 33 3407 9091 10221 27273 37477 100001 112431 300003 30973037 92919111 340703407 1022110221