Search a number
-
+
1212122000104 = 23151515250013
BaseRepresentation
bin10001101000111000000…
…110011110101011101000
311021212200212101112000021
4101220320012132223220
5124324411213000404
62324501405050224
7153400341001141
oct21507006365350
94255625345007
101212122000104
114280702a61a4
12176b01256974
138a3c1ac6932
144294a422ac8
15217e4009454
hex11a3819eae8

1212122000104 has 8 divisors (see below), whose sum is σ = 2272728750210. Its totient is φ = 606061000048.

The previous prime is 1212122000099. The next prime is 1212122000113. The reversal of 1212122000104 is 4010002212121.

It can be written as a sum of positive squares in only one way, i.e., 985060220004 + 227061780100 = 992502^2 + 476510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12121220001042 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75757624999 + ... + 75757625014.

Almost surely, 21212122000104 is an apocalyptic number.

It is an amenable number.

1212122000104 is a deficient number, since it is larger than the sum of its proper divisors (1060606750106).

1212122000104 is a wasteful number, since it uses less digits than its factorization.

1212122000104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151515250019 (or 151515250015 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212122000104 its reverse (4010002212121), we get a palindrome (5222124212225).

The spelling of 1212122000104 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred four", and thus it is an aban number.

Divisors: 1 2 4 8 151515250013 303030500026 606061000052 1212122000104