221021012011002 has 32 divisors (see below), whose sum is σ = 507156607907712. Its totient is φ = 62903145160704.

The previous prime is 221021012010989. The next prime is 221021012011021. The reversal of 221021012011002 is 200110210120122.

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, 10238131323 + ... + 10238152910.

It is an arithmetic number, because the mean of its divisors is an integer number (15848643997116).

Almost surely, 2^{221021012011002} is an apocalyptic number.

221021012011002 is an abundant number, since it is smaller than the sum of its proper divisors (286135595896710).

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

221021012011002 is a wasteful number, since it uses less digits than its factorization.

221021012011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20476284502.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221021012011002 its reverse (200110210120122), we get a palindrome (421131222131124).

The spelling of 221021012011002 in words is "two hundred twenty-one trillion, twenty-one billion, twelve million, eleven thousand, two".