Search a number
-
+
2221010312312 = 2311101249888649
BaseRepresentation
bin100000010100011110100…
…001111101110001111000
321212022211000201222122202
4200110132201331301320
5242342112114443222
64420152411005332
7316314464106641
oct40243641756170
97768730658582
102221010312312
11786a1a468660
122ba543a39848
131315956690bc
14796d70ca6c8
153cb90c39892
hex2051e87dc78

2221010312312 has 32 divisors (see below), whose sum is σ = 4587955614000. Its totient is φ = 999554592000.

The previous prime is 2221010312309. The next prime is 2221010312321. The reversal of 2221010312312 is 2132130101222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124935437 + ... + 124953212.

Almost surely, 22221010312312 is an apocalyptic number.

2221010312312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221010312312 is an abundant number, since it is smaller than the sum of its proper divisors (2366945301688).

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

2221010312312 is a wasteful number, since it uses less digits than its factorization.

2221010312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249888767 (or 249888763 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2221010312312 its reverse (2132130101222), we get a palindrome (4353140413534).

The spelling of 2221010312312 in words is "two trillion, two hundred twenty-one billion, ten million, three hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 101 202 404 808 1111 2222 4444 8888 249888649 499777298 999554596 1999109192 2748775139 5497550278 10995100556 21990201112 25238753549 50477507098 100955014196 201910028392 277626289039 555252578078 1110505156156 2221010312312