1511222002212 has 48 divisors (see below), whose sum is σ = 3962535292800. Its totient is φ = 444774367488.

The previous prime is 1511222002177. The next prime is 1511222002229. The reversal of 1511222002212 is 2122002221151.

It is a super-2 number, since 2×1511222002212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210590337 + ... + 210597512.

It is an arithmetic number, because the mean of its divisors is an integer number (82552818600).

Almost surely, 2^{1511222002212} is an apocalyptic number.

1511222002212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1511222002212 is an abundant number, since it is smaller than the sum of its proper divisors (2451313290588).

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

1511222002212 is a wasteful number, since it uses less digits than its factorization.

1511222002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421187892 (or 421187890 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 1511222002212 its reverse (2122002221151), we get a palindrome (3633224223363).

The spelling of 1511222002212 in words is "one trillion, five hundred eleven billion, two hundred twenty-two million, two thousand, two hundred twelve".