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1212214134 = 231791128691
BaseRepresentation
bin100100001000000…
…1110101101110110
310010110222212011210
41020100032231312
54440311323014
6320141542250
742016435665
oct11020165566
93113885153
101212214134
1157229946a
12299b74986
131641aca91
14b6dccddc
157164e859
hex4840eb76

1212214134 has 16 divisors (see below), whose sum is σ = 2437974720. Its totient is φ = 401813640.

The previous prime is 1212214109. The next prime is 1212214147. The reversal of 1212214134 is 4314122121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212214134.

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, 563272 + ... + 565419.

It is an arithmetic number, because the mean of its divisors is an integer number (152373420).

Almost surely, 21212214134 is an apocalyptic number.

1212214134 is an abundant number, since it is smaller than the sum of its proper divisors (1225760586).

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

1212214134 is a wasteful number, since it uses less digits than its factorization.

1212214134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128875.

The product of its digits is 384, while the sum is 21.

The square root of 1212214134 is about 34816.8656544497. The cubic root of 1212214134 is about 1066.2518093524.

Adding to 1212214134 its reverse (4314122121), we get a palindrome (5526336255).

The spelling of 1212214134 in words is "one billion, two hundred twelve million, two hundred fourteen thousand, one hundred thirty-four".