1212222100002 has 64 divisors (see below), whose sum is σ = 2558129904000. Its totient is φ = 381895354368.

The previous prime is 1212222099997. The next prime is 1212222100007. The reversal of 1212222100002 is 2000012222121.

It is an interprime number because it is at equal distance from previous prime (1212222099997) and next prime (1212222100007).

It is not an unprimeable number, because it can be changed into a prime (1212222100007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124083774 + ... + 124093542.

It is an arithmetic number, because the mean of its divisors is an integer number (39970779750).

Almost surely, 2^{1212222100002} is an apocalyptic number.

1212222100002 is an abundant number, since it is smaller than the sum of its proper divisors (1345907803998).

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

1212222100002 is a wasteful number, since it uses less digits than its factorization.

1212222100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275.

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

Adding to 1212222100002 its reverse (2000012222121), we get a palindrome (3212234322123).

The spelling of 1212222100002 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thousand, two".