1212212022000 has 160 divisors (see below), whose sum is σ = 4466481936384. Its totient is φ = 277077024000.

The previous prime is 1212212021963. The next prime is 1212212022089. The reversal of 1212212022000 is 2202122121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14389096 + ... + 14473095.

Almost surely, 2^{1212212022000} is an apocalyptic number.

1212212022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212212022000 is an abundant number, since it is smaller than the sum of its proper divisors (3254269914384).

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

1212212022000 is a wasteful number, since it uses less digits than its factorization.

1212212022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28862224 (or 28862208 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1212212022000 its reverse (2202122121), we get a palindrome (1214414144121).

The spelling of 1212212022000 in words is "one trillion, two hundred twelve billion, two hundred twelve million, twenty-two thousand".