1212701952 has 144 divisors (see below), whose sum is σ = 4024161792. Its totient is φ = 314972160.

The previous prime is 1212701929. The next prime is 1212701969. The reversal of 1212701952 is 2591072121.

It is a super-2 number, since 2×1212701952² = 2941292048769220608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48883 + ... + 69389.

It is an arithmetic number, because the mean of its divisors is an integer number (27945568).

Almost surely, 2^1212701952 is an apocalyptic number.

1212701952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212701952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2012080896).

1212701952 is an abundant number, since it is smaller than the sum of its proper divisors (2811459840).

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

1212701952 is a wasteful number, since it uses less digits than its factorization.

1212701952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20544 (or 20530 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1212701952 is about 34823.8704339423. The cubic root of 1212701952 is about 1066.3948168336.

The spelling of 1212701952 in words is "one billion, two hundred twelve million, seven hundred one thousand, nine hundred fifty-two".