1020001022222 has 64 divisors (see below), whose sum is σ = 1902342758400. Its totient is φ = 399391516800.

The previous prime is 1020001022203. The next prime is 1020001022263. The reversal of 1020001022222 is 2222201000201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1020001022197 and 1020001022206.

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, 72031979 + ... + 72046137.

It is an arithmetic number, because the mean of its divisors is an integer number (29724105600).

Almost surely, 2^{1020001022222} is an apocalyptic number.

1020001022222 is a deficient number, since it is larger than the sum of its proper divisors (882341736178).

1020001022222 is a wasteful number, since it uses less digits than its factorization.

1020001022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18201.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1020001022222 its reverse (2222201000201), we get a palindrome (3242202022423).

The spelling of 1020001022222 in words is "one trillion, twenty billion, one million, twenty-two thousand, two hundred twenty-two".