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2022223021 = 71344834957
BaseRepresentation
bin111100010001000…
…1010110010101101
312012221011120110221
41320202022302231
513120142114041
6532355131341
7101053416640
oct17042126255
95187146427
102022223021
119485460a5
124852a3b51
13262c58590
14152801a57
15bc8022d1
hex7888acad

2022223021 has 16 divisors (see below), whose sum is σ = 2489947264. Its totient is φ = 1599321024.

The previous prime is 2022223009. The next prime is 2022223037. The reversal of 2022223021 is 1203222202.

It is not a de Polignac number, because 2022223021 - 217 = 2022091949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022222986 and 2022223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022223001) 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, 405475 + ... + 410431.

It is an arithmetic number, because the mean of its divisors is an integer number (155621704).

Almost surely, 22022223021 is an apocalyptic number.

It is an amenable number.

2022223021 is a deficient number, since it is larger than the sum of its proper divisors (467724243).

2022223021 is a wasteful number, since it uses less digits than its factorization.

2022223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2022223021 is about 44969.1340921748. The cubic root of 2022223021 is about 1264.5704136883.

Adding to 2022223021 its reverse (1203222202), we get a palindrome (3225445223).

The spelling of 2022223021 in words is "two billion, twenty-two million, two hundred twenty-three thousand, twenty-one".

Divisors: 1 7 13 91 4483 4957 31381 34699 58279 64441 407953 451087 22222231 155555617 288889003 2022223021