1212220200010 has 16 divisors (see below), whose sum is σ = 2182055220072. Its totient is φ = 484875000000.

The previous prime is 1212220199977. The next prime is 1212220200029. The reversal of 1212220200010 is 100020222121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 603553410769 + 608666789241 = 776887^2 + 780171^2 .

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, 1241241 + ... + 1991260.

Almost surely, 2^{1212220200010} is an apocalyptic number.

1212220200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212220200010 is a deficient number, since it is larger than the sum of its proper divisors (969835020062).

1212220200010 is a wasteful number, since it uses less digits than its factorization.

1212220200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270009.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212220200010 its reverse (100020222121), we get a palindrome (1312240422131).

The spelling of 1212220200010 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred thousand, ten".