1226537069690 has 32 divisors (see below), whose sum is σ = 2209375284480. Its totient is φ = 490257522304.

The previous prime is 1226537069651. The next prime is 1226537069699. The reversal of 1226537069690 is 969607356221.

It is a happy number.

It is a super-2 number, since 2×1226537069690² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226537069699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96245459 + ... + 96258201.

It is an arithmetic number, because the mean of its divisors is an integer number (69042977640).

Almost surely, 2^{1226537069690} is an apocalyptic number.

1226537069690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226537069690 is a deficient number, since it is larger than the sum of its proper divisors (982838214790).

1226537069690 is a wasteful number, since it uses less digits than its factorization.

1226537069690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19006.

The product of its (nonzero) digits is 7348320, while the sum is 56.

The spelling of 1226537069690 in words is "one trillion, two hundred twenty-six billion, five hundred thirty-seven million, sixty-nine thousand, six hundred ninety".